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【TypeScript】__extendsやnew __()は何をやっているか[JS]
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//http://kenjimorita.jp/typescript__extends_new__ | |
var __extends = (this && this.__extends) || function (d, b) { | |
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; | |
function __() { this.constructor = d; } | |
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); | |
}; | |
var Point = (function () { | |
function Point(x, y) { | |
this.x = x; | |
this.y = y; | |
} | |
Point.prototype.add = function (point) { | |
return new Point(this.x + point.x, this.y + point.y); | |
}; | |
Point.prototype.log = function () { | |
console.log("here is Point"); | |
}; | |
return Point; | |
}()); | |
var point = new Point(1, 1); | |
var Point3D = (function (_super) { | |
__extends(Point3D, _super); | |
function Point3D(x, y, z) { | |
_super.call(this, x, y); | |
this.z = z; | |
} | |
Point3D.prototype.add = function (point) { | |
var point2D = _super.prototype.add.call(this, point); | |
return new Point3D(point2D.x, point2D.y, this.z + point.z); | |
}; | |
return Point3D; | |
}(Point)); | |
var point3d = new Point3D(5, 10, 10); |
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