[ES6] Spread Operator

最新推荐文章于 2025-03-04 21:20:00 发布

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最新推荐文章于 2025-03-04 21:20:00 发布

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原文链接：http://www.cnblogs.com/Answer1215/p/5096653.html

本文介绍了JavaScript中Rest参数和Spread操作符的区别与用法。Rest参数用于收集传递给函数的多个参数为一个数组，而Spread操作符则用于将数组拆分为独立元素。两者在语法上相似但使用场景不同。

The spread operator allow us to split an Array arguement into individual elements.

getRequest("/topics/17/tags", function(data){
    let tags = data.tags;
    displayTags(...tags); // The dispalyTags function is now receiving individual arguements , not an Array.
})

Rest and Spread look the same:

Rest parameters and the spread operator look the same, but the formeris used in function definitions and the later in function invocations.