Commit 203f693

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add oop_javascript

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	`1`	`+function Vector(var _x, var _y){`
	`2`	`+ this.x = _x;`
	`3`	`+ this.y = _y;`
	`4`	`+}`
	`5`	`+`
	`6`	`+Vector.prototype.plus = function(vector){`
	`7`	`+ return new Vector(this.x + vector.x, this.y + vector.y);`
	`8`	`+}`
	`9`	`+`
	`10`	`+Vector.prototype.minus = function(vector){`
	`11`	`+ return new Vector(this.x - vector.x, this.y - vector.y);`
	`12`	`+}`
	`13`	`+`
	`14`	`+// Test`
	`15`	`+console.log(new Vector(1, 2).plus(new Vector(2, 3)));`
	`16`	`+// => Vector{x: 3, y: 5}`
	`17`	`+console.log(new Vector(1, 2).minus(new Vector(2, 3)));`
	`18`	`+// => Vector{x: -1, y: -1}`

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