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JavaScript 类型化数组 slice() 方法


示例

// 创建类型化数组
const myArr = Int16Array.from([10,15,20,25,30,35,40,45,50]);

// 对数组进行切片
const newArr = myArr.slice(2);
亲自试一试 »
// 创建类型化数组
const myArr = Int16Array.from([10,15,20,25,30,35,40,45,50]);

// 对数组进行切片
const newArr = myArr.slice(2, 5);
亲自试一试 »

描述

slice() 方法返回数组中选定的元素,并将其作为新数组返回。

slice() 方法可以从给定的 start 到给定的 end 范围内选择元素。

slice() 方法不会更改原始数组。


语法

typed-array.slice(start, end)

参数

参数 描述
start 可选。
起始位置(包含起始位置)。默认值为 0。
负数表示从数组末尾开始选择。
end 可选。
结束位置(不含结束位置)。默认为最后一个元素。
负数表示从数组末尾开始选择元素。

返回值

包含所选元素的新类型化数组。

浏览器支持

typed-array.slice() 是 ECMAScript 6 (ES6 2015) 的一项特性。

JavaScript 2015 自 2017 年 6 月起,所有浏览器均已支持 JavaScript 2015。

Chrome
51
Edge
15
Firefox
54
Safari
10
Opera
38
2016年5月 2017年4月 2017年6月 2016年9月 2016年6月

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