是否有一种方法来执行JavaScript和显示使用Visual Studio代码的结果?
例如,一个脚本文件包含:
console.log('hello world');
我假设Node.js是需要的,但不知道如何做到这一点?
通过Visual Studio Code,我指的是来自微软的新代码编辑器 不是用Visual Studio编写的代码。
是否有一种方法来执行JavaScript和显示使用Visual Studio代码的结果?
例如,一个脚本文件包含:
console.log('hello world');
我假设Node.js是需要的,但不知道如何做到这一点?
通过Visual Studio Code,我指的是来自微软的新代码编辑器 不是用Visual Studio编写的代码。
当前回答
为了简单地运行代码并在控制台上显示输出,您可以创建一个任务并执行它,就像@canerbalci提到的那样。
这样做的缺点是,你只能得到输出,仅此而已。
我真正喜欢做的是能够调试代码,让我们说我试图解决一个小算法或尝试一个新的ES6功能,我运行它,有一些可疑的东西,我可以在VSC中调试它。
因此,我没有为它创建一个任务,而是修改了.vscode/launch。Json文件,如下所示:
{
"version": "0.2.0",
"configurations": [
{
"name": "Launch",
"type": "node",
"request": "launch",
"program": "${file}",
"stopOnEntry": true,
"args": [],
"cwd": "${fileDirname}",
"runtimeExecutable": null,
"runtimeArgs": [
"--nolazy"
],
"env": {
"NODE_ENV": "development"
},
"externalConsole": false,
"sourceMaps": false,
"outDir": null
}
]
}
这将在VSC的调试器中启动您当前所在的文件。它设置在启动时停止。
要启动它,在要调试的文件中按F5键。
其他回答
你不需要在visual studio代码中设置运行javascript、python等代码的环境,你所要做的就是安装代码运行器扩展,然后选择你想要运行的代码的一部分,然后点击右上角的运行按钮。
这很简单,当你在VS Code中创建一个新文件并运行它时,如果你还没有配置文件,它会为你创建一个,你唯一需要设置的是“program”值,并将其设置为你的主JS文件的路径,如下所示:
{
"version": "0.1.0",
// List of configurations. Add new configurations or edit existing ones.
// ONLY "node" and "mono" are supported, change "type" to switch.
// ABSOLUTE paths are required for no folder workspaces.
"configurations": [
{
// Name of configuration; appears in the launch configuration drop down menu.
"name": "Launch",
// Type of configuration. Possible values: "node", "mono".
"type": "node",
// ABSOLUTE path to the program.
"program": "C:\\test.js", //HERE YOU PLACE THE MAIN JS FILE
// Automatically stop program after launch.
"stopOnEntry": false,
// Command line arguments passed to the program.
"args": [],
// ABSOLUTE path to the working directory of the program being debugged. Default is the directory of the program.
"cwd": "",
// ABSOLUTE path to the runtime executable to be used. Default is the runtime executable on the PATH.
"runtimeExecutable": null,
// Optional arguments passed to the runtime executable.
"runtimeArgs": [],
// Environment variables passed to the program.
"env": { },
// Use JavaScript source maps (if they exist).
"sourceMaps": false,
// If JavaScript source maps are enabled, the generated code is expected in this directory.
"outDir": null
},
{
"name": "Attach",
"type": "node",
// TCP/IP address. Default is "localhost".
"address": "localhost",
// Port to attach to.
"port": 5858,
"sourceMaps": false
}
]
}
过程
*(前言)
步骤如下: 根据我的记忆,没有严格测试步骤…(可能会错过一些东西?) 以后的版本可能会有一些不同的变化 事物的自动设置(例如:环境路径)可能是不同的 在Win10
运行纯js
download & install Vscode download & install Node.js from the the offical website, eg: in G:\nodejs\node.exe open Vscode -> open your workspace folder eg: MyTestSpace -> create a new file call eg: test.js write a code console.log('-----test-----'); in test.js go to the Run and Debug panel (ctrl+shift+d) > Run drop down list at the top > Add Config (MyTestSpace) > a launch.json should be auto generated for you > at the auto-completetion popup > select Node.js: Launch Program > auto complete config fill in > rename the program to the path where your test.js locate your launch.json should look something like this:: { "version": "0.2.0", "configurations": [ { "type": "node", "request": "launch", "name": "Launch Program", "program": "${workspaceFolder}/test.js", }, ], } go back to the Run drop down list > select Launch Program (MyTestSpace) > click the Run button in your Debug Console should see the following:: G:\nodejs\node.exe .\test.js -----test----- a graph for demo naming might be different (just a ugly rough draft for demo [[(just try to post an answer wrote with little effort...)]]) (ignore unnecessary staff...)
运行js & html(简要介绍)
have a eg: main_test.html file, with a <script> tag refer to the test.js in the Run drop down list > add config > select Chrome > auto complete launch.json > change path to main_test.html eg: { "type": "chrome", "request": "launch", "name": "Open main_test.html", "file": "h:\\Book\\debug\\LXPI\\OEBPS\\lib_new2\\libNt\\crossFileHtse\\build_HighlightTypeset_ReadHtse\\main_test.html", }, select that chrome launch config > Run > html is opened up in your browser & console log printed
我很惊讶居然没有人提到这一点:
只需在VS Code中打开有问题的.js文件,切换到“调试控制台”选项卡,点击左侧导航栏中的调试按钮,然后点击运行图标(播放按钮)!
需要安装nodejs !
这个解决方案打算运行当前打开的文件在节点和显示输出在VSCode。
我也有同样的问题,并且发现新引入的任务对于这个特定的用例很有用。这有点麻烦,但我是这么做的:
在项目的根目录中创建一个.vscode目录,并创建一个tasks。Json文件。将这个任务定义添加到文件中:
{
"version": "0.1.0",
"command": "node",
"isShellCommand": true,
"args": [
"--harmony"
],
"tasks": [
{
"taskName": "runFile",
"suppressTaskName": true,
"showOutput": "always",
"problemMatcher": "$jshint",
"args": ["${file}"]
}
]
}
然后你可以: press F1 > type ' run task ' > enter > select ' runFile ' > enter 来运行任务,但我发现为打开任务列表添加自定义键绑定更容易。
要添加键绑定,在VSCode UI菜单中,点击“Code”>“Preferences”>“Keyboard Shortcuts”。添加到你的键盘快捷键:
{
"key": "cmd+r",
"command": "workbench.action.tasks.runTask"
}
当然,你可以选择任何你想要的组合键。
更新:
假设您正在运行JavaScript代码来测试它,您可以通过将其isTestCommand属性设置为true来将您的任务标记为测试任务,然后您可以将一个键绑定到workbench.action.tasks.test命令以进行单动作调用。
换句话说,就是你的任务。Json文件现在将包含:
{
"version": "0.1.0",
"command": "node",
"isShellCommand": true,
"args": [
"--harmony"
],
"tasks": [
{
"taskName": "runFile",
"isTestCommand": true,
"suppressTaskName": true,
"showOutput": "always",
"problemMatcher": "$jshint",
"args": ["${file}"]
}
]
}
...还有你的按键。Json文件现在将包含:
{
"key": "cmd+r",
"command": "workbench.action.tasks.test"
}