[Angular 2] Inclure un fichier js externe

Bonjour,

Au cours de mon développement d'un site cote client avec Angular2.
Pour une raison ou pour un autre inclure des fichiers js..
je suis donc confronter a recoder ou a inclure ce fichier JS.

voici mon fichier JS qui utilise une libraire :

Code:

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var colors = [
  ['#ced7df', '#9E290D'], ['#ced7df', '#FF6E2E'], ['#ced7df', '#9E290D'], ['#ced7df', '#FF6E2E'],
  ['#ced7df', '#FF6E2E'], ['#ced7df', '#9E290D'],['#ced7df', '#FF6E2E'], ['#ced7df', '#9E290D'],
  ['#ced7df', '#9E290D'], ['#ced7df', '#FF6E2E'], ['#ced7df', '#9E290D'], ['#ced7df', '#FF6E2E'],
  ['#ced7df', '#FF6E2E'], ['#ced7df', '#9E290D'],['#ced7df', '#FF6E2E'], ['#ced7df', '#9E290D'],
 
];
var i = 1;
var child = document.getElementById('circles-' + i),
  percentage = 65 ;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 2;
var child = document.getElementById('circles-' + i),
  percentage = 70;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 3;
var child = document.getElementById('circles-' + i),
  percentage = 80;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 4;
var child = document.getElementById('circles-' + i),
  percentage = 83;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 5;
var child = document.getElementById('circles-' + i),
  percentage = 85;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 6;
var child = document.getElementById('circles-' + i),
  percentage = 65;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 7;
var child = document.getElementById('circles-' + i),
  percentage = 75;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 8;
var child = document.getElementById('circles-' + i),
  percentage = 85;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 9;
var child = document.getElementById('circles-' + i),
  percentage = 86;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 10;
var child = document.getElementById('circles-' + i),
  percentage = 75;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 11;
var child = document.getElementById('circles-' + i),
  percentage = 75;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 12;
var child = document.getElementById('circles-' + i),
  percentage = 70;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
var i = 13;
var child = document.getElementById('circles-' + i),
  percentage = 69;
 
Circles.create({
  id:         child.id,
  percentage: percentage,
  radius:     80,
  width:      10,
  number:   	percentage,
  text:       '%',
  colors:     colors[i - 1]
});
 
 
 
/*for (var i = 1; i <= 5; i++) {
 var child = document.getElementById('circles-' + i),
 percentage = 50 + (i * 10);
 
 Circles.create({
 id:         child.id,
 percentage: percentage,
 radius:     80,
 width:      10,
 number:   	percentage,
 text:       '%',
 colors:     colors[i - 1]
 });
 }*/

la libraire est :

Code:

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// circles
// copyright Artan Sinani
// https://github.com/lugolabs/circles
 
/*
  Lightwheight JavaScript library that generates circular graphs in SVG.
 
  Call Circles.create(options) with the following options:
 
    id         - the DOM element that will hold the graph
    percentage - the percentage dictating the smaller circle
    radius     - the radius of the circles
    width      - the width of the ring (optional, has value 10, if not specified)
    number     - the number to display at the centre of the graph (optional, the percentage will show if not specified)
    text       - the text to display after the number (optional, nothing will show if not specified)
    colors     - an array of colors, with the first item coloring the full circle
                 (optional, it will be `['#EEE', '#F00']` if not specified)
    duration   - value in ms of animation duration; (optional, defaults to 500);
                 if `null` is passed, the animation will not run
 
  API:
    generate(radius) - regenerates the circle with the given radius (see spec/responsive.html for an example hot to create a responsive circle)
 
*/
 
(function() {
  var Circles = window.Circles = function(options) {
    var elId = options.id;
    this._el = document.getElementById(elId);
 
    if (this._el === null) return;
 
 
    this._radius         = options.radius;
    this._percentage     = options.percentage;
    this._text           = options.text; // #3
    this._number         = options.number || this._percentage;
    this._strokeWidth    = options.width  || 10;
    this._colors         = options.colors || ['#EEE', '#F00'];
    this._interval       = 16;
    this._textWrpClass   = 'circles-text-wrp';
    this._textClass      = 'circles-text';
    this._numberClass    = 'circles-number';
 
    this._confirmAnimation(options.duration);
 
    var endAngleRad      = Math.PI / 180 * 270;
    this._start          = -Math.PI / 180 * 90;
    this._startPrecise   = this._precise(this._start);
    this._circ           = endAngleRad - this._start;
 
    this.generate();
 
    if (this._canAnimate) this._animate();
  };
 
  Circles.prototype = {
    VERSION: '0.0.4',
 
    generate: function(radius) {
      if (radius) {
        this._radius = radius;
        this._canAnimate = false;
      }
      this._svgSize        = this._radius * 2;
      this._radiusAdjusted = this._radius - (this._strokeWidth / 2);
      this._el.innerHTML   = this._wrap(this._generateSvg() + this._generateText());
    },
 
    _confirmAnimation: function(duration) {
      if (duration === null) {
        this._canAnimate = false;
        return;
      }
 
      duration = duration || 500;
 
      var step     = duration / this._interval,
        pathFactor = this._percentage / step,
        numberFactor = this._number / step;
 
      if (this._percentage <= (1 + pathFactor)) {
        this._canAnimate = false;
      } else {
        this._canAnimate   = true;
        this._pathFactor   = pathFactor;
        this._numberFactor = numberFactor;
      }
    },
 
    _animate: function() {
      var i      = 1,
        self     = this,
        path     = this._el.getElementsByTagName('path')[1],
        numberEl = this._getNumberElement(),
 
        isInt    = this._number % 1 === 0,
 
        requestAnimFrame = window.requestAnimationFrame       ||
                           window.webkitRequestAnimationFrame ||
                           window.mozRequestAnimationFrame    ||
                           window.oRequestAnimationFrame      ||
                           window.msRequestAnimationFrame     ||
                           function (callback) {
                               setTimeout(callback, self._interval);
                           },
 
        animate = function() {
          var percentage   = self._pathFactor * i,
            nextPercentage = self._pathFactor * (i + 1),
            number         = self._numberFactor * i,
            canContinue    = true;
          if (isInt) {
            number = Math.round(number);
          }
          if (nextPercentage > self._percentage) {
            percentage  = self._percentage;
            number      = self._number;
            canContinue = false;
          }
          if (percentage > self._percentage) return;
          path.setAttribute('d', self._calculatePath(percentage, true));
          numberEl.innerHTML = self._calculateNumber(number);
          i++;
          if (canContinue) requestAnimFrame(animate);
        };
 
      requestAnimFrame(animate);
    },
 
    _getNumberElement: function() {
      var divs = this._el.getElementsByTagName('span');
      for (var i = 0, l = divs.length; i < l; i++) {
        if (divs[i].className === this._numberClass) return divs[i];
      }
    },
 
    _wrap: function(content) {
      return '<div class="circles-wrp" style="position:relative; display:inline-block;">' + content + '</div>';
    },
 
    _generateText: function() {
      var html =  '<div class="' + this._textWrpClass + '" style="position:absolute; top:0; left:0; text-align:center; width:100%;' +
        ' font-size:' + this._radius * .7 + 'px; height:' + this._svgSize + 'px; line-height:' + this._svgSize + 'px;">' +
        this._calculateNumber(this._canAnimate ? 0 : this._number);
      if (this._text) {
        html += '<span class="' + this._textClass + '">' + this._text + '</span>';
      }
      html += '</div>';
      return html;
    },
 
    _calculateNumber: function(number) {
      var parts = (number + '').split('.'),
        html = '<span class="' + this._numberClass + '">' + parts[0];
      if (parts.length > 1) {
        html += '.<span style="font-size:.4em">' + parts[1].substring(0, 2) + '</span>';
      }
      return html + '</span>';
    },
 
    _generateSvg: function() {
      return '<svg width="' + this._svgSize + '" height="' + this._svgSize + '">' +
        this._generatePath(100, false, this._colors[0]) +
        this._generatePath(this._canAnimate ? 1 : this._percentage, true, this._colors[1]) +
      '</svg>';
    },
 
    _generatePath: function(percentage, open, color) {
      return '<path fill="transparent" stroke="' + color + '" stroke-width="' + this._strokeWidth + '" d="' + this._calculatePath(percentage, open) + '"/>';
    },
 
    _calculatePath: function(percentage, open) {
      var end      = this._start + ((percentage / 100) * this._circ),
        endPrecise = this._precise(end);
      return this._arc(endPrecise, open);
    },
 
    _arc: function(end, open) {
      var endAdjusted = end - 0.001,
        longArc       = end - this._startPrecise < Math.PI ? 0 : 1;
 
      return [
        'M',
        this._radius + this._radiusAdjusted * Math.cos(this._startPrecise),
        this._radius + this._radiusAdjusted * Math.sin(this._startPrecise),
        'A', // arcTo
        this._radiusAdjusted, // x radius
        this._radiusAdjusted, // y radius
        0, // slanting
        longArc, // long or short arc
        1, // clockwise
        this._radius + this._radiusAdjusted * Math.cos(endAdjusted),
        this._radius + this._radiusAdjusted * Math.sin(endAdjusted),
        open ? '' : 'Z' // close
      ].join(' ');
    },
 
    _precise: function(value) {
      return Math.round(value * 1000) / 1000;
    }
  };
 
  Circles.create = function(options) {
    return new Circles(options);
  };
})();

ma questions est comment faire pour que mon fichier js lise la bibliothèque,

Ou comment l'inclure dans mon html.
Une simple inclusion ne se gère pas sous Angular2.

merci pour vos réactions.