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luchoching/indexOf.js

Created March 27, 2015 05:38
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Array.indexOf
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indexOf.js
var a = {x:1, y:2};
var b = {x:3, y:4};
var arr = [a, b];
console.log(arr.indexOf(a)); //0
console.log(arr.indexOf({x:1, y:2})); //-1
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