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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.