JavaScript Array Method Encyclopedia

Array in the written test will often appear in the face test, JavaScript in the array and other languages of the array is somewhat different, in order to facilitate the study of the array method, the following small series for everyone to organize the operation of the array of methods, together to see.

Array Creation

There are two ways to create arrays in JavaScript, the first of which is to use the array constructor:?

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var arr1 = new Array (); Create an empty array var arr2 = new Array (20); Create an array containing 20 items var arr3 = new Array ("Lily", "Lucy", "Tom"); Create an array that contains 3 strings

The second basic way to create an array is to use an array literal notation:?

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