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本文为读 lodash 源码的第九十四篇,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
import baseWhile from './.internal/baseWhile.js'
《lodash源码分析之baseWhile》
takeRightWhile 的作用和 takeRight 差不多,但是不是直接传入数量 n,而是传入一个预测函数 predicate,只有在预测函数返回真值时才会从数组中将元素取出,和 takeRight 一样,takeRightWhile 也是从后向前取值的。
takeRightWhile
takeRight
n
predicate
源码如下:
function takeRightWhile(array, predicate) { return (array != null && array.length) ? baseWhile(array, predicate, false, true) : [] }
可以看到,takeRightWhile 其实就是直接调用 baseWhile 来实现的,注意传入的第四个参数 fromRight 为 true ,表示从后向前取值。
baseWhile
fromRight
true
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
The text was updated successfully, but these errors were encountered:
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本文为读 lodash 源码的第九十四篇,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
《lodash源码分析之baseWhile》
源码分析
takeRightWhile
的作用和takeRight
差不多,但是不是直接传入数量n
,而是传入一个预测函数predicate
,只有在预测函数返回真值时才会从数组中将元素取出,和takeRight
一样,takeRightWhile
也是从后向前取值的。源码如下:
可以看到,
takeRightWhile
其实就是直接调用baseWhile
来实现的,注意传入的第四个参数fromRight
为true
,表示从后向前取值。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
The text was updated successfully, but these errors were encountered: