Nodejs HTML Escape htmlEscape()

Method Source Code

String.prototype.htmlEscape = function() {
    return this.replace(/&/g, '&')
        .replace(/</g, '&lt;')
        .replace(/>/g, '&gt;')
        .replace(/"/g, '&quot;')
        .replace(/'/g, '&#39;');
}
console.log('<script>'.htmlEscape()); // &lt;script&gt;

Related

1. htmlEscape()

   String.prototype.htmlEscape = function(){
       var span = document.createElement('span');
       var txt =  document.createTextNode('');
       span.appendChild(txt);
       txt.data = this;
       return span.innerHTML;
   };
   

2. htmlEscape()

   String.prototype.htmlEscape = function () {
       return this.replace(/&/g, '%amp;')
           .replace(/</g, '&lt;')
           .replace(/>/g, '&gt;')
           .replace(/"/g, '&quot;')
           .replace(/'/g, '&#39');
   console.log('<script>'.htmlEscape());
   

3. htmlEscape()

   String.prototype.htmlEscape = function() {
        return $('<div/>').text(this.toString()).html();
   };
   (function($) {
       $.fn.hasScrollBar = function() {
           if (this.height() < 0) {
               return false;
           return this.get(0).scrollHeight > this.height();
   ...
   

4. htmlEscape()

   String.prototype.htmlEscape = function (){
       var escapedStr = String(this).replace(/&/g, '&');
       escapedStr = escapedStr.replace(/\s/g, ' ');
       return escapedStr;
   var text = 'This is for testing';
   console.log(text);
   text = text.htmlEscape(); 
   console.log(text);
   ...
   

5. htmlEscape()

   String.prototype.htmlEscape = function (){
     var escapedStr = String(this).replace(/&/g, '&');
     escapedStr = escapedStr.replace(/</g, '&lt;');
     escapedStr = escapedStr.replace(/>/g, '&gt;');
     escapedStr = escapedStr.replace(/"/g, '&quot;');
     escapedStr = escapedStr.replace(/'/g, "&#39");
     return escapedStr;
   

6. htmlEscape()

   "use strict";
   String.prototype.htmlEscape = function()
     return this.
       replace(/&/g, '&').
       replace(/</g, '&lt;').
       replace(/>/g, '&gt;').
       replace(/"/g, '&quot;').
       replace(/\n/g, '<br/>');
   ...
   

7. htmlEscape()

   String.prototype.htmlEscape = function() {
     var obj = document.createElement('div');
     if (typeof obj.textContent != 'undefined') {
       obj.textContent = this;
     } else {
       obj.innerText = this;
     return obj.innerHTML;
   };
   ...
   

8. htmlEscape()

   String.prototype.htmlEscape = function () {
     return this.replace(/"/g, '&quot;').replace(/>/g, '&gt;').replace(/</g, '&lt;').replace(/&/g, '&amp;');
   };
   

9. normalizeHtml()

   String.prototype.normalizeHtml = function () {
       return  this.replace(/(\n|\r|\t|\s\s+)/gm, "").trim();
   };