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[angular] 4.ng-show/ng-hide 与 ng-if 的区别？ #528

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qiilee opened this issue Oct 15, 2019 · 0 comments

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qiilee commented Oct 15, 2019

答案：我们都知道 ng-show/ng-hide 实际上是通过 display 来进行隐藏和显示的。而 ng-if 实际上控制 dom 节点的增删除来实现的。因此如果我们是根据不同的条件来进行 dom 节点的加载的话，那么 ng-if 的性能好过 ng-show.

qiilee added the Angular label

qiilee added this to In progress in 每日一题认领区

qiilee moved this from Angular to Done in 每日一题认领区

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