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@achudars
Last active December 17, 2015 00:19
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Use of 'for ... of' in JavaScript
let arr = [ 3, 5, 7 ];
arr.foo = "hello";
for (let i in arr) {
console.log(i); // logs "0", "1", "2", "foo"
}
for (let i of arr) {
console.log(i); // logs "3", "5", "7"
}
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