The for ... in syntax mentioned by others is for looping over an object's properties; since an Array in JavaScript is just an object with numeric property names ... ... <看更多>

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Introduction to JavaScript Array forEach() method. Typically, when you want to execute a function on every element of an array, you use a for loop statement. ... <看更多>

A common task in JavaScript is to iterate through the contents of an array . ... This code will output each element of the array arr to the console:. ... <看更多>