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，然后按进入下一个函数调用。
到达以下行时：

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:

},

弹出另一个名为 [VM]（8312）的文件。我一直单击转到下一个函数调用，现在的屏幕是：

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

这些奇怪而神秘的脚本是什么[[VM]（XXXX，它们在哪里

推荐答案

[VM]（scriptId）没有特殊含义，它是一个虚拟名称，可以帮助我们区分与文件名不直接相关的代码，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，所有这些脚本都被标记为（程序）。

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] ，您会发现这些数字在开发人员工具之外没有重要意义。

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）重命名为 VMscriptId 前一阵子，这是< a href = https://chromium.googlesource.com/chromium/blink/+/669a2f29610ca8d0a8790bb829bfde4ba768e936/Source/devtools/front_end/bindings/DefaultScriptMapping.js#193 rel = noreferrer>直接链接到搜索结果如果值再次更改。

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

这篇关于Chrome开发工具：来自javascript的[VM]文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！