How to get the first few elements of an array in javascript

Javascript method to get the first few elements of an array: 1. Use slice() to intercept a specified number of elements from the array, the syntax is "array.slice(0, number of elements)"; 2. Use splice(), the syntax is "array.splice(0, number of elements);".

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

Javascript method to get the first few elements of the array

1. Use slice()

## The #slice() method returns selected elements from an existing array.

The slice() method extracts a certain part of a string and returns the extracted part as a new string.

var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"]; var citrus = fruits.slice(0,3); console.log("数组前三个元素："+citrus);

2. Use splice()

The splice() method is used to add or delete elements in the array.

The splice() method returns an array containing the deleted elements.

var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"]; var citrus = fruits.splice(0,2); console.log("数组前两个元素："+citrus);

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