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lodash源码分析之cloneTypedArray #187

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HeftyKoo opened this issue Apr 11, 2020 · 0 comments
Open

lodash源码分析之cloneTypedArray #187

HeftyKoo opened this issue Apr 11, 2020 · 0 comments
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internal 内部函数或方法 系列文章

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@HeftyKoo
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HeftyKoo commented Apr 11, 2020

本文为读 lodash 源码的第一百八十六篇,后续文章会更新到这个仓库中,欢迎 star:pocket-lodash

gitbook也会同步仓库的更新,gitbook地址:pocket-lodash

依赖

import cloneArrayBuffer from './cloneArrayBuffer.js'

《lodash源码分析之cloneArrayBuffer》

源码分析

cloneTypedArray 的作用是用来复制 typedArray 视图。

源码如下:

function cloneTypedArray(typedArray, isDeep) {
  const buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer
  return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length)
}

其实这个代码和 cloneDataView 一模一样,这也可以理解,因为 typedArraydataView 一样,都是 arrayBuffer 的视图。

其实不需要两个独立的函数来做这个事情的,这两个完成可以合并成一个类似于 cloneArrayBufferView 之类的函数。

参考

《lodash源码分析之cloneDataView》

License

署名-非商业性使用-禁止演绎 4.0 国际 (CC BY-NC-ND 4.0)

最后,所有文章都会同步发送到微信公众号上,欢迎关注,欢迎提意见:

作者:对角另一面

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