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savelee/new.js

Last active July 25, 2016 14:00
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Arrow Functions: No duplicate named arguments. Arrow functions cannot have duplicate named arguments in strict or nonstrict mode, as opposed to non-arrow functions that cannot have duplicate named arguments only in strict mode
Raw
new.js
//ES2015
var x = (x,x) => x;
//SyntaxError: duplicate argument names not allowed in this context
Raw
old.js
//ES5
var x = function (x,x) { return x; }
x("hello", "world"); //returns "world";
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