Vnu NPM | npm.io

vnu

Unofficial Node.js wrapper for Nu HTML Checker

Requirement

Java
Node.js & npm

Install

Run

yarn add vnu

npm install vnu

Usage

(async () => {
  const { vnu } = require("vnu"); // Or import { vnu } from "vnu";

  const result1 = await vnu("https://example.com/", {
    "errors-only": true,
  });

  const result2 = await vnu("./example.html", {
    "asciiquotes": true,
  });

  const result3 = await vnu(`
    <!DOCTYPE html>
    <html lang="en">
      <head>
        <meta charset="utf-8">
        <title>Invalid HTML</title>
      </head>
      <body>
        <center>This HTML is invalid</center>
        <img
          src="https://example.com/example.jpg"
          border="0">
      </body>
    </html>
  `, {
    "user-agent": "Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Mobile Safari/537.36",
  });
})();

Syntax

const result = await vnu(target, options);

Parameters

target: string

A URL or filepath (absolute or relative) to validate.

options: object

The options object supports most of the options supported in The Nu Markup Checker. See also: http://validator.github.io/validator/#options

`options.asciiquotes`

Type: Boolean Default: false

`options.errors-only`

Type: Boolean Default: false

`options.filterfile`

Type: String Default: undefined

`options.filterpattern`

Type: String Default: undefined

`options.skip-non-css`

Type: Boolean Default: false

`options.css`

Type: Boolean Default: false

`options.skip-non-svg`

Type: Boolean Default: false

`options.svg`

Type: Boolean Default: false

`options.skip-non-html`

Type: Boolean Default: false

`options.html`

Type: Boolean Default: false

`options.no-stream`

Type: Boolean Default: false

`options.also-check-css`

Type: Boolean Default: false

`options.also-check-svg`

Type: Boolean Default: false

`options.user-agent`

Type: String Default: "Validator.nu/LV"

`options.no-langdetect`

Type: Boolean Default: false

Unsupported options

exit-zero-always
format
help
Werror
verbose
version

Return values

[
  {
    type: "error",
    url: "https://amazon.co.jp",
    lastLine: 4,
    lastColumn: 55,
    firstColumn: 1,
    message: "Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.",
    extract: "ation -->\n<meta http-equiv='x-dns-prefetch-control' content='on'><link ",
    hiliteStart: 10,
    hiliteLength: 55
  },
  {
    type: "error",
    url: "https://amazon.co.jp",
    lastLine: 67,
    lastColumn: 108859,
    message: "CSS: “color”: Parse Error.",
    extract: "with_important()}.a-button-pri",
    hiliteStart: 15,
    hiliteLength: 1
  },
  // ...
]