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Replace character in nodejs for ejs template

A string of characters called a regular expression.With help RegExp creates a search pattern and we can remove character ,number and special character.In our code we can transform the string new format .We can observe that regular expression can be a simple pattern or just a single character in below example :-

var str=" <h>  Hello, World!  </h> "
console.log(str.replace(/"/g, `'`))

We are understand that this era is depend on technology and we have most popular language that is NODE JS . Node js is generated dynamic page content for web application.

Here we discuss about a library of node js that is EJS.
For configure EJS in Node js you need to use following :

var express = require('express');
app.set('view engine', 'ejs')

One of the most well-liked JavaScript template engines is EJS.
The full form of ejs Embedded JavaScript Templating). As the name implies, it enables us to include JavaScript code in a template language that produces HTML.

Replace Special character in nodejs

Here we are replacing a special character from String except small letter, capital letter and number. 

var str=" <h>  Hello, World!  </h> "
console.log(str.replace(/[^a-zA-Z0-9]/g, ' '))

Replace Special character in nodejs but except some special character

Here we are replacing a special character from String except small letter, capital letter ,number and < , > , / . For this below is example :

var str=" <h>  Hello, World!  </h> "
console.log(str.replace(/[^a-zA-Z0-9<>//]/g, ' '))

Conclusion 

In this article, you have understand the difference between multiple character and single character Regular Expression.
We can use a function replace in our example .So it is pretty simple to undertand logic on this topic.
EJS, or Embedded JavaScript, is a popular templating engine for Node.js that allows for the generation of dynamic HTML markup by embedding JavaScript code within HTML templates. It simplifies the process of rendering dynamic content in web applications by combining the structure of HTML with the logic and data handling capabilities of JavaScrip .