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                >[success] # JS -- 數組30s小文章 ~~~ 1.文章所有內容來自30s 數組章節內容整理 2.建議先讀文章再來看下面總結方法 ~~~ [如果你想知道具體細節我超級推薦你看這個](https://www.30secondsofcode.org/js/t/array/e/11) >[success] # 數組文章節選 [內容來自JavaScript 核心原理精講](https://kaiwu.lagou.com/course/courseInfo.htm?courseId=601#/detail/pc?id=6180) ~~~ 1.所有插入元素的方法,比如 push、unshift 一律返回數組新的長度; 2.所有刪除元素的方法,比如 pop、shift、splice 一律返回刪除的元素,或 者返回刪除的多個元素組成的數組; 3.部分遍歷方法,比如 forEach、every、some、filter、map、find、 findIndex,它們都包含 function(value,index,array){}?和?thisArg?這樣兩個形 參。 ~~~ ![](https://img.kancloud.cn/c7/af/c7af30a1f8d3f08d3326b23df8a29727_731x259.png)
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