Uncaught ReferenceError: particlesJS is not defined at app.js:2

$(document).ready(function() { 
  var ancho = $(window).width(); 
 
  if (ancho > 600) { 
    /* particlesJS('dom-id', params); 
    /* @dom-id : set the html tag id [string, optional, default value : particles-js] 
    /* @params: set the params [object, optional, default values : check particles.js] */ 
 
    /* config dom id (optional) + config particles params */ 
    particlesJS('particles-js', { 
      particles: { 
        color: '#000', 
        color_random: false, 
        shape: 'circle', // "circle", "edge" or "triangle" 
        opacity: { 
          opacity: 1, 
          anim: { 
            enable: true, 
            speed: 1.5, 
            opacity_min: 0, 
            sync: false 
          } 
        }, 
        size: 4, 
        size_random: true, 
        nb: 150, 
        line_linked: { 
          enable_auto: true, 
          distance: 100, 
          color: '#fff', 
          opacity: 1, 
          width: 1, 
          condensed_mode: { 
            enable: false, 
            rotateX: 600, 
            rotateY: 600 
          } 
        }, 
        anim: { 
          enable: true, 
          speed: 1 
        } 
      }, 
      interactivity: { 
        enable: true, 
        mouse: { 
          distance: 300 
        }, 
        detect_on: 'canvas', // "canvas" or "window" 
        mode: 'grab', // "grab" of false 
        line_linked: { 
          opacity: .5 
        }, 
        events: { 
          onclick: { 
            enable: true, 
            mode: 'push', // "push" or "remove" 
            nb: 4 
          }, 
          onresize: { 
            enable: true, 
            mode: 'out', // "out" or "bounce" 
            density_auto: false, 
            density_area: 800 // nb_particles = particles.nb * (canvas width *  canvas height / 1000) / density_area 
          } 
        } 
      }, 
      /* Retina Display Support */ 
      retina_detect: true 
    }); 
  } 
 
}); 
 
/* ----------------------------------------------- 
/* Author : Natalio Rabasco 
/* ----------------------------------------------- */ 
 
function launchParticlesJS(tag_id, params) { 
 
  var canvas_el = document.querySelector('#' + tag_id + ' > canvas'); 
 
  /* particles.js variables with default values */ 
  pJS = { 
    canvas: { 
      el: canvas_el, 
      w: canvas_el.offsetWidth, 
      h: canvas_el.offsetHeight 
    }, 
    particles: { 
      color: '#fff', 
      color_random: false, 
      shape: 'circle', // "circle", "edge" or "triangle" 
      opacity: { 
        opacity: 1, 
        anim: { 
          enable: false, 
          speed: 2, 
          opacity_min: 0, 
          sync: false 
        } 
      }, 
      size: 2.5, 
      size_random: true, 
      nb: 200, 
      line_linked: { 
        enable_auto: true, 
        distance: 100, 
        color: '#fff', 
        opacity: 1, 
        width: 1, 
        condensed_mode: { 
          enable: false, 
          rotateX: 3000, 
          rotateY: 3000 
        } 
      }, 
      anim: { 
        enable: true, 
        speed: 2 
      }, 
      array: [] 
    }, 
    interactivity: { 
      enable: true, 
      mouse: { 
        distance: 100 
      }, 
      detect_on: 'canvas', 
      mode: 'grab', 
      line_linked: { 
        opacity: 1 
      }, 
      events: { 
        onclick: { 
          enable: true, 
          mode: 'push', 
          nb: 4 
        }, 
        onresize: { 
          enable: true, 
          mode: 'out', // "out" or "bounce" 
          density_auto: false, 
          density_area: 800 // nb_particles = particles.nb * (canvas width *  canvas height / 1000) / density_area 
        } 
      } 
    }, 
    retina_detect: false, 
    fn: { 
      vendors: { 
        interactivity: {} 
      } 
    } 
  }; 
 
  /* params settings */ 
  if (params) { 
    if (params.particles) { 
      var paramsForParticles = params.particles; 
      if (paramsForParticles.color) pJS.particles.color = paramsForParticles.color; 
      if (paramsForParticles.color_random) pJS.particles.color_random = paramsForParticles.color_random; 
      if (paramsForParticles.shape) pJS.particles.shape = paramsForParticles.shape; 
      if (paramsForParticles.opacity) { 
        var paramsForOpacity = paramsForParticles.opacity; 
        if (typeof paramsForOpacity == 'object') pJS.particles.opacity.opacity = paramsForOpacity.opacity; 
        else pJS.particles.opacity.opacity = paramsForOpacity; 
        if (paramsForOpacity.anim) { 
          var paramsForOpacityAnim = paramsForOpacity.anim; 
          if (paramsForOpacityAnim.enable == false || paramsForOpacityAnim.enable) pJS.particles.opacity.anim.enable = paramsForOpacityAnim.enable; 
          if (paramsForOpacityAnim.speed) pJS.particles.opacity.anim.speed = paramsForOpacityAnim.speed; 
          if (paramsForOpacityAnim.opacity_min) pJS.particles.opacity.anim.opacity_min = paramsForOpacityAnim.opacity_min; 
          if (paramsForOpacityAnim.sync == false || paramsForOpacityAnim.sync) pJS.particles.opacity.anim.sync = paramsForOpacityAnim.sync; 
        } 
      } 
      if (paramsForParticles.size) pJS.particles.size = paramsForParticles.size; 
      if (paramsForParticles.size_random == false) pJS.particles.size_random = paramsForParticles.size_random; 
      if (paramsForParticles.nb) pJS.particles.nb = paramsForParticles.nb; 
      if (paramsForParticles.line_linked) { 
        var paramsForLineLinked = paramsForParticles.line_linked; 
        if (paramsForLineLinked.enable_auto == false) pJS.particles.line_linked.enable_auto = paramsForLineLinked.enable_auto; 
        if (paramsForLineLinked.distance) pJS.particles.line_linked.distance = paramsForLineLinked.distance; 
        if (paramsForLineLinked.color) pJS.particles.line_linked.color = paramsForLineLinked.color; 
        if (paramsForLineLinked.opacity) pJS.particles.line_linked.opacity = paramsForLineLinked.opacity; 
        if (paramsForLineLinked.width) pJS.particles.line_linked.width = paramsForLineLinked.width; 
        if (paramsForLineLinked.condensed_mode) { 
          var paramsForCondensedMode = paramsForLineLinked.condensed_mode; 
          if (paramsForCondensedMode.enable == false) pJS.particles.line_linked.condensed_mode.enable = paramsForCondensedMode.enable; 
          if (paramsForCondensedMode.rotateX) pJS.particles.line_linked.condensed_mode.rotateX = paramsForCondensedMode.rotateX; 
          if (paramsForCondensedMode.rotateY) pJS.particles.line_linked.condensed_mode.rotateY = paramsForCondensedMode.rotateY; 
        } 
      } 
      if (paramsForParticles.anim) { 
        var paramsForAnim = paramsForParticles.anim; 
        if (paramsForAnim.enable == false) pJS.particles.anim.enable = paramsForAnim.enable; 
        if (paramsForAnim.speed) pJS.particles.anim.speed = paramsForAnim.speed; 
      } 
    } 
    if (params.interactivity) { 
      var paramsForInteractivity = params.interactivity; 
      if (paramsForInteractivity.enable == false) pJS.interactivity.enable = paramsForInteractivity.enable; 
      if (paramsForInteractivity.mouse) { 
        if (paramsForInteractivity.mouse.distance) pJS.interactivity.mouse.distance = paramsForInteractivity.mouse.distance; 
      } 
      if (paramsForInteractivity.detect_on) pJS.interactivity.detect_on = paramsForInteractivity.detect_on; 
      if (paramsForInteractivity.mode == false || paramsForInteractivity.mode) pJS.interactivity.mode = paramsForInteractivity.mode; 
      if (paramsForInteractivity.line_linked) { 
        if (paramsForInteractivity.line_linked.opacity) pJS.interactivity.line_linked.opacity = paramsForInteractivity.line_linked.opacity; 
      } 
      if (paramsForInteractivity.events) { 
        var paramsForEvents = paramsForInteractivity.events; 
        if (paramsForEvents.onclick) { 
          var paramsForOnclick = paramsForEvents.onclick; 
          if (paramsForOnclick.enable == false) pJS.interactivity.events.onclick.enable = false; 
          if (paramsForOnclick.mode != 'push') pJS.interactivity.events.onclick.mode = paramsForOnclick.mode; 
          if (paramsForOnclick.nb) pJS.interactivity.events.onclick.nb = paramsForOnclick.nb; 
        } 
        if (paramsForEvents.onresize) { 
          var paramsForOnresize = paramsForEvents.onresize; 
          if (paramsForOnresize.enable == false) pJS.interactivity.events.onresize.enable = false; 
          if (paramsForOnresize.mode) pJS.interactivity.events.onresize.mode = paramsForOnresize.mode; 
          if (paramsForOnresize.density_auto == false || paramsForOnresize.density_auto) pJS.interactivity.events.onresize.density_auto = paramsForOnresize.density_auto; 
          if (paramsForOnresize.density_area) pJS.interactivity.events.onresize.density_area = paramsForOnresize.density_area; 
        } 
      } 
    } 
    pJS.retina_detect = params.retina_detect; 
  } 
 
  /* convert hex colors to rgb */ 
  pJS.particles.color_rgb = hexToRgb(pJS.particles.color); 
  pJS.particles.line_linked.color_rgb_line = hexToRgb(pJS.particles.line_linked.color); 
 
  /* detect retina */ 
  if (pJS.retina_detect && window.devicePixelRatio > 1) { 
    pJS.retina = true; 
 
    pJS.canvas.pxratio = window.devicePixelRatio 
    pJS.canvas.w = pJS.canvas.el.offsetWidth * pJS.canvas.pxratio; 
    pJS.canvas.h = pJS.canvas.el.offsetHeight * pJS.canvas.pxratio; 
    pJS.particles.anim.speed = pJS.particles.anim.speed * pJS.canvas.pxratio; 
    pJS.particles.line_linked.distance = pJS.particles.line_linked.distance * pJS.canvas.pxratio; 
    pJS.particles.line_linked.width = pJS.particles.line_linked.width * pJS.canvas.pxratio; 
    pJS.interactivity.mouse.distance = pJS.interactivity.mouse.distance * pJS.canvas.pxratio; 
  } 
 
 
  /* ---------- CANVAS functions ------------ */ 
 
  pJS.fn.canvasInit = function() { 
    pJS.canvas.ctx = pJS.canvas.el.getContext('2d'); 
  }; 
 
  pJS.fn.canvasSize = function() { 
 
    pJS.canvas.el.width = pJS.canvas.w; 
    pJS.canvas.el.height = pJS.canvas.h; 
 
    window.addEventListener('resize', function() { 
 
      if (pJS && pJS.interactivity.events.onresize.enable) { 
 
        pJS.canvas.w = pJS.canvas.el.offsetWidth; 
        pJS.canvas.h = pJS.canvas.el.offsetHeight; 
 
        /* resize canvas */ 
        if (pJS.retina) { 
          pJS.canvas.w *= pJS.canvas.pxratio; 
          pJS.canvas.h *= pJS.canvas.pxratio; 
        } 
 
        pJS.canvas.el.width = pJS.canvas.w; 
        pJS.canvas.el.height = pJS.canvas.h; 
 
        /* repaint canvas */ 
        pJS.fn.canvasPaint(); 
        if (!pJS.particles.anim.enable) { 
          pJS.fn.particlesRemove(); 
          pJS.fn.canvasRemove(); 
          launchParticles(); 
        } 
 
        /* density particles enabled */ 
        pJS.fn.densityAuto(); 
 
      } 
 
    }); 
 
  }; 
 
  pJS.fn.densityAuto = function() { 
    if (pJS.interactivity.events.onresize.density_auto) { 
 
      /* calc area */ 
      var area = pJS.canvas.el.width * pJS.canvas.el.height / 1000; 
      if (pJS.retina) { 
        area = area / (pJS.canvas.pxratio * 2); 
      } 
 
      /* calc number of particles based on density area */ 
      var nb_particles = area * pJS.particles.nb / pJS.interactivity.events.onresize.density_area; 
 
      /* show nb_particles (add or remove X particles) */ 
      var missing_particles = pJS.particles.array.length - nb_particles; 
      if (missing_particles < 0) { 
        pJS.fn.vendors.interactivity.pushParticles(Math.abs(missing_particles)); 
      } else { 
        pJS.fn.vendors.interactivity.removeParticles(missing_particles); 
      } 
 
    } 
  }; 
 
  pJS.fn.canvasPaint = function() { 
    pJS.canvas.ctx.fillRect(0, 0, pJS.canvas.w, pJS.canvas.h); 
  }; 
 
  pJS.fn.canvasRemove = function() { 
    pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h); 
  } 
 
 
  /* --------- PARTICLES functions ----------- */ 
 
  pJS.fn.particle = function(color, opacity, position) { 
 
    /* position */ 
    this.x = position ? position.x : Math.random() * pJS.canvas.w; 
    this.y = position ? position.y : Math.random() * pJS.canvas.h; 
 
    /* size */ 
    this.radius = (pJS.particles.size_random ? Math.random() : 1) * pJS.particles.size; 
    if (pJS.retina) this.radius *= pJS.canvas.pxratio; 
 
    /* color */ 
    if (pJS.particles.color_random) { 
      this.color = { 
        r: (Math.floor(Math.random() * (255 - 0 + 1)) + 0), 
        g: (Math.floor(Math.random() * (255 - 0 + 1)) + 0), 
        b: (Math.floor(Math.random() * (255 - 0 + 1)) + 0) 
      } 
    } else { 
      this.color = color; 
    } 
 
    /* opacity */ 
    this.opacity = opacity; 
    if (pJS.particles.opacity.anim.enable) { 
      this.opacity_status = false; 
      this.vo = pJS.particles.opacity.anim.speed / 100; 
      if (!pJS.particles.opacity.anim.sync) { 
        this.vo = this.vo * Math.random(); 
      } 
    } 
 
    /* animation - velocity for speed */ 
    this.vx = -.5 + Math.random(); 
    this.vy = -.5 + Math.random(); 
 
  }; 
 
  pJS.fn.particle.prototype.draw = function() { 
 
    pJS.canvas.ctx.fillStyle = 'rgba(' + this.color.r + ',' + this.color.g + ',' + this.color.b + ',' + this.opacity + ')'; 
    pJS.canvas.ctx.beginPath(); 
 
    switch (pJS.particles.shape) { 
      case 'circle': 
        pJS.canvas.ctx.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false); 
        break; 
 
      case 'edge': 
        pJS.canvas.ctx.rect(this.x, this.y, this.radius * 2, this.radius * 2); 
        break; 
 
      case 'triangle': 
        pJS.canvas.ctx.moveTo(this.x, this.y - this.radius); 
        pJS.canvas.ctx.lineTo(this.x + this.radius, this.y + this.radius); 
        pJS.canvas.ctx.lineTo(this.x - this.radius, this.y + this.radius); 
        pJS.canvas.ctx.closePath(); 
        break; 
    } 
 
    pJS.canvas.ctx.fill(); 
 
  }; 
 
  pJS.fn.particlesCreate = function() { 
    for (var i = 0; i < pJS.particles.nb; i++) { 
      pJS.particles.array.push(new pJS.fn.particle(pJS.particles.color_rgb, pJS.particles.opacity.opacity)); 
    } 
  }; 
 
  pJS.fn.particlesAnimate = function() { 
    for (var i = 0; i < pJS.particles.array.length; i++) { 
      /* the particle */ 
      var p = pJS.particles.array[i]; 
 
      /* move the particle */ 
      p.x += p.vx * (pJS.particles.anim.speed / 2); 
      p.y += p.vy * (pJS.particles.anim.speed / 2); 
 
      /* change opacity status */ 
      if (pJS.particles.opacity.anim.enable) { 
        if (p.opacity_status == true) { 
          if (p.opacity >= pJS.particles.opacity.opacity) p.opacity_status = false; 
          p.opacity += p.vo; 
        } else { 
          if (p.opacity <= pJS.particles.opacity.anim.opacity_min) p.opacity_status = true; 
          p.opacity -= p.vo; 
        } 
      } 
 
      /* change particle position if it is out of canvas */ 
      switch (pJS.interactivity.events.onresize.mode) { 
        case 'bounce': 
          if (p.x - p.radius > pJS.canvas.w) p.vx = -p.vx; 
          else if (p.x + p.radius < 0) p.vx = -p.vx; 
          if (p.y - p.radius > pJS.canvas.h) p.vy = -p.vy; 
          else if (p.y + p.radius < 0) p.vy = -p.vy; 
          break; 
 
        case 'out': 
          if (p.x - p.radius > pJS.canvas.w) p.x = p.radius; 
          else if (p.x + p.radius < 0) p.x = pJS.canvas.w + p.radius; 
          if (p.y - p.radius > pJS.canvas.h) p.y = p.radius; 
          else if (p.y + p.radius < 0) p.y = pJS.canvas.h + p.radius; 
          break; 
      } 
 
 
      /* Check distance between each particle and mouse position */ 
      for (var j = i + 1; j < pJS.particles.array.length; j++) { 
        var p2 = pJS.particles.array[j]; 
 
        /* link particles if enable */ 
        if (pJS.particles.line_linked.enable_auto) { 
          pJS.fn.vendors.distanceParticles(p, p2); 
        } 
 
        /* set interactivity if enable */ 
        if (pJS.interactivity.enable) { 
 
          /* interactivity mode */ 
          switch (pJS.interactivity.mode) { 
            case 'grab': 
              pJS.fn.vendors.interactivity.grabParticles(p, p2); 
              break; 
          } 
 
        } 
 
 
      } 
    } 
  }; 
 
  pJS.fn.particlesDraw = function() { 
    /* clear canvas */ 
    pJS.canvas.ctx.clearRect(0, 0, pJS.canvas.w, pJS.canvas.h); 
 
    /* move particles */ 
    pJS.fn.particlesAnimate(); 
 
    /* draw each particle */ 
    for (var i = 0; i < pJS.particles.array.length; i++) { 
      var p = pJS.particles.array[i]; 
      p.draw('rgba(' + p.color.r + ',' + p.color.g + ',' + p.color.b + ',' + p.opacity + ')'); 
    } 
 
  }; 
 
  pJS.fn.particlesRemove = function() { 
    pJS.particles.array = []; 
  }; 
 
 
  /* ---------- VENDORS functions ------------ */ 
 
  pJS.fn.vendors.distanceParticles = function(p1, p2) { 
 
    var dx = p1.x - p2.x, 
      dy = p1.y - p2.y, 
      dist = Math.sqrt(dx * dx + dy * dy); 
 
    /* Check distance between particle and mouse mos */ 
    if (dist <= pJS.particles.line_linked.distance) { 
 
      /* draw the line */ 
      var color_line = pJS.particles.line_linked.color_rgb_line; 
      pJS.canvas.ctx.beginPath(); 
      pJS.canvas.ctx.strokeStyle = 'rgba(' + color_line.r + ',' + color_line.g + ',' + color_line.b + ',' + (pJS.particles.line_linked.opacity - dist / pJS.particles.line_linked.distance) + ')'; 
      pJS.canvas.ctx.moveTo(p1.x, p1.y); 
      pJS.canvas.ctx.lineTo(p2.x, p2.y); 
      pJS.canvas.ctx.lineWidth = pJS.particles.line_linked.width; 
      pJS.canvas.ctx.stroke(); 
      pJS.canvas.ctx.closePath(); 
 
      /* condensed particles */ 
      if (pJS.particles.line_linked.condensed_mode.enable) { 
        var dx = p1.x - p2.x, 
          dy = p1.y - p2.y, 
          ax = dx / (pJS.particles.line_linked.condensed_mode.rotateX * 1000), 
          ay = dy / (pJS.particles.line_linked.condensed_mode.rotateY * 1000); 
        p2.vx += ax; 
        p2.vy += ay; 
      } 
 
    } 
 
  }; 
 
  pJS.fn.vendors.interactivity.listeners = function() { 
 
    /* init el */ 
    if (pJS.interactivity.detect_on == 'window') { 
      var detect_el = window; 
    } else { 
      var detect_el = pJS.canvas.el; 
    } 
 
    /* el on mousemove */ 
    detect_el.onmousemove = function(e) { 
 
      if (detect_el == window) { 
        var pos_x = e.clientX, 
          pos_y = e.clientY; 
      } else { 
        var pos_x = e.offsetX || e.clientX, 
          pos_y = e.offsetY || e.clientY; 
      } 
 
      if (pJS) { 
 
        pJS.interactivity.mouse.pos_x = pos_x; 
        pJS.interactivity.mouse.pos_y = pos_y; 
 
        if (pJS.retina) { 
          pJS.interactivity.mouse.pos_x *= pJS.canvas.pxratio; 
          pJS.interactivity.mouse.pos_y *= pJS.canvas.pxratio; 
        } 
 
        pJS.interactivity.status = 'mousemove'; 
      } 
 
    }; 
 
    /* el on onmouseleave */ 
    detect_el.onmouseleave = function(e) { 
 
      if (pJS) { 
        pJS.interactivity.mouse.pos_x = 0; 
        pJS.interactivity.mouse.pos_y = 0; 
        pJS.interactivity.status = 'mouseleave'; 
      } 
 
    }; 
 
    /* el on onclick */ 
    if (pJS.interactivity.events.onclick.enable) { 
      switch (pJS.interactivity.events.onclick.mode) { 
        case 'push': 
          detect_el.onclick = function(e) { 
            pJS.fn.vendors.interactivity.pushParticles(pJS.interactivity.events.onclick.nb, pJS.interactivity.mouse); 
          } 
          break; 
 
        case 'remove': 
          detect_el.onclick = function(e) { 
            pJS.fn.vendors.interactivity.removeParticles(pJS.interactivity.events.onclick.nb); 
          } 
          break; 
      } 
    } 
  }; 
 
  pJS.fn.vendors.interactivity.pushParticles = function(nb, pos) { 
    if (pJS) { 
      for (var i = 0; i < nb; i++) { 
        pJS.particles.array.push( 
          new pJS.fn.particle( 
            pJS.particles.color_rgb, 
            pJS.particles.opacity.opacity, { 
              'x': pos ? pos.pos_x : Math.random() * pJS.canvas.w, 
              'y': pos ? pos.pos_y : Math.random() * pJS.canvas.h 
            } 
          ) 
        ) 
      } 
    } 
  }; 
 
  pJS.fn.vendors.interactivity.removeParticles = function(nb) { 
    if (pJS) { 
      pJS.particles.array.splice(0, nb); 
    } 
  }; 
 
 
  pJS.fn.vendors.interactivity.grabParticles = function(p1, p2) { 
    var dx = p1.x - p2.x, 
      dy = p1.y - p2.y, 
      dist = Math.sqrt(dx * dx + dy * dy); 
 
    var dx_mouse = p1.x - pJS.interactivity.mouse.pos_x, 
      dy_mouse = p1.y - pJS.interactivity.mouse.pos_y, 
      dist_mouse = Math.sqrt(dx_mouse * dx_mouse + dy_mouse * dy_mouse); 
 
    /* Check distance between 2 particles + Check distance between 1 particle and mouse position */ 
    if (dist <= pJS.particles.line_linked.distance && dist_mouse <= pJS.interactivity.mouse.distance && pJS.interactivity.status == 'mousemove') { 
      /* Draw the line */ 
      var color_line = pJS.particles.line_linked.color_rgb_line; 
      pJS.canvas.ctx.beginPath(); 
      pJS.canvas.ctx.strokeStyle = 'rgba(' + color_line.r + ',' + color_line.g + ',' + color_line.b + ',' + (pJS.interactivity.line_linked.opacity - dist_mouse / pJS.interactivity.mouse.distance) + ')'; 
      pJS.canvas.ctx.moveTo(p1.x, p1.y); 
      pJS.canvas.ctx.lineTo(pJS.interactivity.mouse.pos_x, pJS.interactivity.mouse.pos_y); 
      pJS.canvas.ctx.lineWidth = pJS.particles.line_linked.width; 
      pJS.canvas.ctx.stroke(); 
      pJS.canvas.ctx.closePath(); 
    } 
  }; 
 
  pJS.fn.vendors.destroy = function() { 
    cancelAnimationFrame(pJS.fn.requestAnimFrame); 
    canvas_el.remove(); 
    pJS = null; 
  }; 
 
 
  /* --------- LAUNCH ----------- */ 
 
  function launchParticles() { 
    pJS.fn.canvasInit(); 
    pJS.fn.canvasSize(); 
    pJS.fn.canvasPaint(); 
    pJS.fn.particlesCreate(); 
    pJS.fn.particlesDraw(); 
    pJS.fn.densityAuto(); 
  }; 
 
 
  function launchAnimation() { 
    pJS.fn.particlesDraw(); 
    pJS.fn.requestAnimFrame = requestAnimFrame(launchAnimation); 
  }; 
 
 
  launchParticles(); 
 
  if (pJS.particles.anim.enable) { 
    launchAnimation(); 
  } 
 
  if (pJS.interactivity.enable) { 
    pJS.fn.vendors.interactivity.listeners(); 
  } 
 
 
}; 
 
/* --- VENDORS --- */ 
 
window.requestAnimFrame = (function() { 
  return window.requestAnimationFrame || 
    window.webkitRequestAnimationFrame || 
    window.mozRequestAnimationFrame || 
    window.oRequestAnimationFrame || 
    window.msRequestAnimationFrame || 
    function(callback) { 
      window.setTimeout(callback, 1000 / 60); 
    }; 
})(); 
 
window.cancelRequestAnimFrame = (function() { 
  return window.cancelAnimationFrame || 
    window.webkitCancelRequestAnimationFrame || 
    window.mozCancelRequestAnimationFrame || 
    window.oCancelRequestAnimationFrame || 
    window.msCancelRequestAnimationFrame || 
    clearTimeout 
})(); 
 
function hexToRgb(hex) { 
  // By Tim Down - http://stackoverflow.com/a/5624139/3493650 
  // Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF") 
  var shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i; 
  hex = hex.replace(shorthandRegex, function(m, r, g, b) { 
    return r + r + g + g + b + b; 
  }); 
  var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); 
  return result ? { 
    r: parseInt(result[1], 16), 
    g: parseInt(result[2], 16), 
    b: parseInt(result[3], 16) 
  } : null; 
}; 
 
 
/* --- LAUNCH --- */ 
 
window.particlesJS = function(tag_id, params) { 
 
  /* no string id? so it's object params, and set the id with default id */ 
  if (typeof(tag_id) != 'string') { 
    params = tag_id; 
    tag_id = 'particles-js'; 
  } 
 
  /* no id? set the id to default id */ 
  if (!tag_id) { 
    tag_id = 'particles-js'; 
  } 
 
  /* create canvas element */ 
  var canvas_el = document.createElement('canvas'); 
 
  /* set size canvas */ 
  canvas_el.style.width = "100%"; 
  canvas_el.style.height = "100%"; 
 
  /* append canvas */ 
  var canvas = document.getElementById(tag_id).appendChild(canvas_el); 
 
  /* launch particle.js */ 
  if (canvas != null) { 
    launchParticlesJS(tag_id, params); 
  } 
 
};

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> 
<div id='particles-js'></div>