Chrome 开发工具:来自 javascript 的 [VM] 文件 [英] Chrome Development Tool: [VM] file from javascript

问题描述

我在我的 javascript 文件 (jaydata.js) 中添加了一个断点，并按下了跳到下一个函数调用".当它到达一行时:

I added a breakpoint in my javascript file (jaydata.js) and was pressing "Step over to the next function call." When it got to a line that was:

},

另一个名为[VM] (8312)"的文件弹出.我一直点击跳到下一个函数调用"，现在我的屏幕是:

another file titled "[VM] (8312)" popped up. I kept clicking "Step over to the next function call" and now my screen is:

这些名为[VM](XXXX")的奇怪而神秘的脚本是什么?它们来自哪里?

推荐答案

[VM] (scriptId) 没有特殊含义.这是一个虚拟名称，可以帮助我们区分与文件名没有直接关联的代码，例如使用 eval 和朋友创建的代码.

[VM] (scriptId) has no special meaning. It's a dummy name to help us to distinguish code which are not directly tied to a file name, such as code created using eval and friends.

过去，所有这些脚本都只是标记为(program).

In the past, all of these scripts were just labelled (program).

如果您有兴趣，只需在 Chromium 的源代码中查找 "[VM]"，你会发现这些数字在开发者之外没有任何意义工具.

If you're interested, just look up "[VM]"in the source code of Chromium, you will discover that these numbers have no significant meaning outside the developer tools.

[VM] (scriptId) 已重命名为 VMscriptId 不久前，这里是 直接链接到搜索结果，以防值再次更改.

[VM] (scriptId) was renamed to VMscriptId a while ago, and here is the direct link to search result in case the value changes again.

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