Vs code validator html

How to enable VS Code HTML error checking / validation?

VSCode doesn’t have HTML validation by default. But it allows you to add extensions and enable these features.

To add HTML validation (linting), Open VSCode, then press Ctrl + P and then paste ext install HTMLHint in it, and press enter. It will install a HTML validator. You may need to reload VSCode to load the extension.

Now if you open the same html document you had the syntax error, you should see there’s an issue shown at the status bar at the bottom 🙂 and it will also show you the errors in those lines.

Solution 2

VS Code default support code formatting and it track the syntactical error. If you create a new file and directly try to write the code than VS Code could not able to understand which language or type of syntax user want to format/correcting. So, first need to save the new file with the proper extension than visual studio properly identify the syntax.

The code formatting is available in VS Code through the following shortcuts:

You can add Auto Close Tag from VS Code marketplace.

Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.

Automatically add HTML/XML close tag, same as Visual Studio IDE or Sublime Text

ext install html-css-class-completion 

Solution 3

I found that this extension (while not letting you extend the built in rules) works better than HTMLHint for checking HTML validity.

Description: Adds W3C validation support to Visual Studio Code.

Solution 4

There is an extension for VS Code which is HTMLHint.
You can install that by following the below
1. To open the extensions:marketplace press Ctrl + Shift + X
2. Type HTMLHint in the search extension box
3. Click on the install button in the search result showing HTMLHint developed by «Mike Kaufman»

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Html-validate plugin for vscode

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hansson/html-validate-vscode

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README.md

Run html-validate on your open html-files. Will read rules from .htmlvalidate.json if it is present in the root of your workspace. If .htmlvalidate.json is missing then the default rules for html-validate will be used.

This extension contributes the following settings:

• html-validate.runOnEdit : Run html-valide while you are editing a document. If set to false html-validate will only when a document is opened or saved.
• html-validate.rulesPath : Path to rules file, relative to workspace or absolute. The name of the file needs to be .htmlvalidate.json. If not set the plugin will search form the current file to the root to find a .htmlvalidate.json file.

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How to enable vs code html error checking / validation in Javascript?

Enabling error checking and validation in Visual Studio Code (VS Code) is crucial for ensuring that your HTML code is well-structured, free of syntax errors, and adheres to the W3C standards. A robust error checking system can save time and help avoid frustration by highlighting errors as you type, allowing you to catch and fix them before you run the code. In this article, we’ll look at several methods to enable error checking and validation in VS Code for HTML files.

Method 1: Use a Linter Extension

To enable HTML error checking and validation in VS Code using a linter extension, follow these steps:

1. Install the «ESLint» extension in VS Code.
2. In your project directory, install the «eslint-plugin-html» package as a dev dependency:

npm install eslint-plugin-html --save-dev

 "plugins": [ "html" ], "extends": [ "eslint:recommended" ], "rules":  "html/indent": "+2", "html/quotes": [ 2, "double" ] > >

1. In VS Code, open the «Settings» editor (File > Preferences > Settings) and add the following configuration:

"eslint.validate": [ "javascript", "html" ]

Now, when you open an HTML file in VS Code, the ESLint extension will validate your code and highlight any errors or warnings in the editor. You can also configure the rules in the «.eslintrc.json» file to customize the validation behavior.

Method 2: Configure HTML Validation in User Settings

To enable HTML error checking/validation in VS Code, you can configure the HTML validation settings in User Settings. Here are the steps to do so:

1. Open VS Code and click on the «Settings» icon in the bottom left corner of the window.
2. In the search bar, type «HTML validation» and click on «Edit in settings.json» under «HTML › Validate: Enable».
3. Add the following code to your settings.json file:

"html.validate": true, "html.format.enable": true, "editor.formatOnSave": true

Now, whenever you open an HTML file in VS Code, the editor will automatically check for errors and provide suggestions for fixing them.

Additionally, you can customize the HTML validation settings further by adding the following code to your settings.json file:

"html.validate.scripts": true, "html.validate.styles": true, "html.validate.attributes": true, "html.validate.stylesNonEmbedded": true, "html.validate.scriptsInitialIndent": true, "html.validate.scriptsSpaceAfterClosing": true

These settings will enable validation for scripts, styles, attributes, non-embedded styles, script initial indentation, and space after closing script tags.

That’s it! With these settings in place, you can ensure that your HTML code is error-free and properly formatted in VS Code.

Method 3: Use an HTML Template

To enable HTML error checking/validation in VS Code using an HTML template, follow these steps:

1. Open VS Code and create a new HTML file.
2. At the top of the file, add the following code to specify the HTML5 doctype:

1. Next, create a new HTML template by typing «html» and selecting the «HTML5 Boilerplate» option from the list of suggestions. This will generate the following code:

DOCTYPE html> html lang="en"> head> meta charset="UTF-8"> meta name="viewport" content="width=device-width, initial-scale=1.0"> title>Documenttitle> head> body> body> html>

1. Install the «HTMLHint» extension in VS Code by going to the Extensions panel and searching for «HTMLHint». Click «Install» to install the extension.
2. Once the extension is installed, open the Command Palette (Ctrl+Shift+P on Windows, Cmd+Shift+P on Mac) and search for «Preferences: Open Workspace Settings». Click on the option to open the workspace settings file.
3. In the workspace settings file, add the following code to enable HTMLHint:

"htmlhint.enable": true, "htmlhint.options":  "html5": true, "attr-lowercase": false, "tagname-lowercase": false, "attr-value-double-quotes": true, "doctype-first": true, "tag-pair": true, "spec-char-escape": true, "id-unique": true, "head-script-disabled": true, "style-disabled": true >

1. Save the workspace settings file and reload VS Code.
2. Now, when you open an HTML file in VS Code, HTMLHint will automatically check for errors and provide suggestions for improvement.

That’s it! You have now enabled HTML error checking/validation in VS Code using an HTML template. Happy coding!

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VS Code HTML проверка / проверка ошибок

Я только что перешел на Visual Studio Code для веб-разработки от Netbeans и нашел свой путь. В Netbeans, если я забуду закрытие скобки на тэг, это будет указывать на мою ошибку с красной подчеркнуто подчеркивающей и предупреждение в левом поле. Я бы подумал, что проверка ошибок является фундаментальной функцией в редакторе веб-разработчиков, например, в коде. Возможно, я просто не нахожу правильный вариант или расширение. Как я могу достичь такого же поведения проверки ошибок html, css в VS Code?

VScode не является полнофункциональной IDE, как NetBeans 🙂 Вы можете расширить vscode, чтобы удовлетворить ваши потребности с помощью расширений. Пожалуйста, проверьте мой ответ.

5 ответов

VSCode по умолчанию не имеет проверки HTML. Но он позволяет добавлять расширения и включать эти функции.

Чтобы добавить проверку HTML (linting), откройте VSCode, затем нажмите Ctrl + P а затем вставьте в него ext install HTMLHint и нажмите enter. Он установит HTML-валидатор. Возможно, вам потребуется перезагрузить VSCode, чтобы загрузить расширение.

Теперь, если вы открываете тот же html-документ, у вас была синтаксическая ошибка, вы должны увидеть там проблему, показанную в строке состояния внизу :), и она также покажет вам ошибки в этих строках.

Спасибо всем за быстрый ответ, расширение htmlhint было именно тем, что мне было нужно, и прекрасно работает, спасибо 🙂

VS Code по умолчанию поддерживает форматирование кода и отслеживает синтаксическую ошибку. Если вы создаете новый файл и прямо пытаетесь написать код, чем VS Code, он не сможет понять, какой язык или тип синтаксиса пользователь хочет форматировать/исправлять. Поэтому сначала нужно сохранить новый файл с соответствующим расширением, чем визуальная студия, правильно идентифицировать синтаксис.

Форматирование кода доступно в VS Code через следующие ярлыки:

Вы можете добавить Auto Close Tag рынок VS Code.

Запустите VS Code Quick Open (Ctrl + P), вставьте следующую команду и нажмите клавишу ввода.

Автоматически добавлять тег тега HTML/XML, такой же, как Visual Studio IDE или Sublime Text

ext install html-css-class-completion 

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