We read every piece of feedback, and take your input very seriously.
To see all available qualifiers, see our documentation.
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
我把我整个灵魂都给你,连同它的怪癖,耍小脾气,忽明忽暗,一千八百种坏毛病。它真讨厌,只有一点好,爱你。 ——王小波
我把我整个灵魂都给你,连同它的怪癖,耍小脾气,忽明忽暗,一千八百种坏毛病。它真讨厌,只有一点好,爱你。
——王小波
本文为读 lodash 源码的第二十八篇,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
last 函数用来获取数组的最后一项,源码如下:
last
function last(array) { const length = array == null ? 0 : array.length return length ? array[length - 1] : undefined }
如果有传递数组,则用 array.length 获取数组的长度,没有传递数组,则 length 赋值为 0 。
array.length
length
0
如果数组长度存在,则返回数组最后一项,否则返回 undefined 。
undefined
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:
No branches or pull requests
本文为读 lodash 源码的第二十八篇,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
源码分析
last
函数用来获取数组的最后一项,源码如下:如果有传递数组,则用
array.length
获取数组的长度,没有传递数组,则length
赋值为0
。如果数组长度存在,则返回数组最后一项,否则返回
undefined
。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: