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vstarck/broken.inheritance.js

Created March 18, 2013 18:21
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broken.inheritance.js
function Parent() {
this.array = [1, 2, 3];
}
function Child() {
}
Child.prototype = new Parent;
var c1 = new Child;
c1.array; // [1, 2, 3]
c1.array.push(4);
var c2 = new Child;
c2.array; // [1, 2, 3, 4]
Raw
fixed.inheritance.js
function Parent() {
this.array = [1, 2, 3];
}
function Child() {
Parent.call(this); // <--------------------- The fix
}
Child.prototype = new Parent;
var c1 = new Child;
c1.array; // [1, 2, 3]
c1.array.push(4);
var c2 = new Child;
c2.array; // [1, 2, 3]
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