js insert data into the first position of the array

Enterprise 2023-09-21 00:48:31 views: null

a=[1,5,9]

// unshift 在第一个位置添加
a.unshift(7)

//结果 a=[7, 1, 5, 9]

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Origin blog.csdn.net/weirdo_world/article/details/116195987

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