当前位置：网站首页>[bug notes] mounted is executed only once under keepalive

[bug notes] mounted is executed only once under keepalive

2022-04-22 07:15:00 【sunshine641】

The title is the essence ！

prospects ：

Vue project , To fit the table size , stay Mounted use window.onresize Monitor window size , obtain document.body.clientHeight Value .（ The question written before ）

It's written in js In the document , By mixing in Mixins Introduction page .

Within the page Watch monitor clientHeight, To change the height of the table .

problem ：

Open the page A after , Successfully monitored clientHeight Change in value , Then open a new page B Also no problem , from B return A after ,A You can't monitor clientHeight Has changed .

solve ：

I thought it was window.onresize The problem of event registration , perhaps watch The problem of monitoring （ Try to add deep Deep monitoring ）, Later, it was found that they were not , Check the life cycle .

because KeepAlive After cache ,Mounted Just once , The page is not destroyed and will not be executed every time you jump back mounted, should Put it in activated Inside That's all right. ！

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