Knockoutjs在Internet Explorer中运行非常慢 [英] Knockoutjs operates extremely slow in Internet Explorer
问题描述
简要:我有一个包含KO代码的页面，该页面在Google Chrome，Firefox，Safari等中绝对运行很酷.但是Internet Explorer的性能却消失了.我尝试了IE10，IE11.渲染大约150行需要10到25秒.
In brief: I've got a page with KO-code that operates absolutely cool in Google Chrome, Firefox, Safari, etc. But the performance is gone in Internet Explorer. I tried IE10, IE11. It takes from 10 to 25 seconds to render about 150 rows.
详细信息:该页面代表用户的工作队列，其中显示了他们的任务.要求是不要在该页面上使用任何分页.表格的每一行至少要显示十二种变体(链接，按钮，输入，css样式，处理用户事件，自定义js插件等).产品上的平均行数为100-200 +.用户能够应用不同的过滤器和排序.
Details: There page represents a work queue for users, where their tasks are shown. The requirement is not to use any paging on that page. Each row of the table has at least a dozen of variants to display (links, buttons, inputs, css styling, handling user events, custom js plugins, etc.). The average number of rows on prod is 100-200+. User is able to apply different filters and sortings.
我已经尝试过的事情:
-
减少了计算属性的数量(在可能的情况下更改为pureComputed)
reduced the number of computed properties (changed to pureComputed, where possible)
减少了使用 template ， if 和 ifnot 绑定的次数(根据分析器，它们是最耗时的任务)-我尽可能使用 visible
reduced the number of using the template, if and ifnot bindings (according to profiler they are the most time consuming task) - I use the visible, where possible
试图使用 knockout-fast-foreach 自定义绑定(
tried to use the knockout-fast-foreach custom binding (https://github.com/brianmhunt/knockout-fast-foreach)
使用IE和Chrome工具配置了代码，以消除内存泄漏
profiled the code with IE and Chrome tools to eliminate the memory leaks
使用 ko.bindingReport.js ( https: //gist.github.com/kamranayub/65399fa247a6c182bc65 )
上面指定的方法在Chrome中将代码(根据 ko.bindingReport.js 进行调整)的速度提高了近两倍.但是IE仍然太慢-渲染大约需要10秒.
The approaches specifed above tuned the code (according to ko.bindingReport.js) almost two times faster in Chrome. But IE is still too slow - about 10 seconds for rendering.
Chrome :
Internet Explorer:
伙计，有什么想法吗?
推荐答案
表绑定提供了一种使用Knockout显示数据表的快速方法.表比嵌套的foreach绑定快大约十倍."
"The table binding provides a fast method for displaying tables of data using Knockout. table is about ten times faster than nested foreach bindings."
它声称速度提高了10倍. https://github.com/mbest/knockout-table
This claims to be 10x faster. https://github.com/mbest/knockout-table
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