HTML-Validate is a nifty plugin that allows you to scrutinize your HTML for potential issues. Nowadays, ally, performance, best practices, and SEO have become important factors for web development. HTML-Validate is a tool that tells you whether your HTML codes are compatible or follow these factors or not. It checks for over 60 rules including HTML syntax errors, deprecated tags, ineffective attributes, and much more.
HTML-Validate also includes an API for JavaScript, hence, a great advantage for developers dealing with JavaScript. Using the HTML-Validate in your code not only helps with catching potential errors but also makes the debugging process much easier.
Problem and Its Solution
One common problem developers face when dealing with HTML codes is deprecated tags and ineffective attributes. These can be tricky to catch without a good eye or experience.
The solution to this is using HTML-Validate. It will scan your HTML codes and point out where the problem areas are, taking out the tedious task of finding the issue yourself. All you need to do is correct them.
Step by Step Explanation of The Code
Using HTML-validate in JavaScript is simple. Let’s see a step by step approach:
// First, you need to install the plugin via npm
npm install html-validate
// Then, you can require it in your JavaScript code:
const { HtmlValidate } = require('html-validate');
// Create an instance of HtmlValidate:
let htmlvalidate = new HtmlValidate();
let report = htmlvalidate.validateString('<p>Lorem ipsum</p>');
if (report.valid) {
console.log("All good!");
} else {
console.log("Errors found:");
console.log(report.errors);
}
First of all, you need to install the plugin using npm. This helps to use the module in your JavaScript code. Once done, you require it in your code, create an instance of HtmlValidate, and run it on your HTML. If everything is fine, it will print “All good!”, else it will print all the errors found in your HTML.
Important Libraries and Functions
Besides the use of HtmlValidate, there are other methods offered by the plugin. You can also use validateFile, validateFragment, and validateElement.
- validateFile(‘path/to/file.html’): This method validates a .html file.
- validateFragment(‘
Lorem ipsum
‘): validates a fragment, in this case, a div tag.
- validateElement(‘
Lorem ipsum
‘): validates an individual element, in this case, a p tag.
There are also many other libraries you can use to validate HTML in JavaScript. Some popular ones are W3C’s Nu Html Checker, tidy-html5, and HTML Tidy. Each of them has its benefits and your choice depends on your requirements.
More About HTML-Validate
One of the defining features of the HTML-Validate utility is its broad range of applications. It allows users to customize their rules based on their individual projects. The tool even provides guidelines for creating custom rules as needed.
Experts in SEO and customization may take advantage of the tool’s extensibility to introduce specific SEO checks and warnings as per specific requirements. This ensures that pages created are not only syntactically correct but also aligned with most trusted SEO practices.
In conclusion, effective use of plugins like HTML-Validate during development can significantly improve your product quality by making your code bug-free and SEO-friendly. This saves effort in the long run, making your development lifecycle smoother.
