Nodejs String Escape escapeCharacters(chars)

Method Source Code

String.prototype.escapeCharacters = function(chars) {
    var foundChar = false;
    var length = chars.length;
    for (var i = 0; i < length; ++i) {
        if (this.indexOf(chars.charAt(i)) !== -1) {
            foundChar = true;//www . ja  va2 s .c o m
            break;
        }
    }

    if (!foundChar)
        return this;

    var result = "";
    for (var j = 0; j < this.length; ++j) {
        if (chars.indexOf(this.charAt(j)) !== -1)
            result += "\\";
        result += this.charAt(j);
    }

    return result;
};

Related

1. escape()

   String.prototype.escape = function () {
       var tagsToReplace = {
           '&': '&',
           '<': '&lt;',
           '>': '&gt;',
       };
       return this.replace(/[&<>]/g, function (tag) {
           return tagsToReplace[tag] || tag;
       });
   ...
   

2. escape()

   String.prototype.escape = function() {
     var tagsToReplace = {
         '&': '&',
         '<': '&lt;',
         '>': '&gt;'
     };
     return nl2br(this.replace(/[&<>]/g, function(tag) {
         return tagsToReplace[tag] || tag;
     }));
   ...
   

3. escape()

   String.prototype.escape = function() {
     return escape(this.replace(/\s/g, '-'));
   

4. escapeSpecialChars()

   String.prototype.escapeSpecialChars = function() {
       return this.replace(/\\n/g, "\\n")
                  .replace(/\\'/g, "\\'")
                  .replace(/\\"/g, '\\"')
                  .replace(/\\&/g, "\\&")
                  .replace(/\\r/g, "\\r")
                  .replace(/\\t/g, "\\t")
                  .replace(/\\b/g, "\\b")
                  .replace(/\\f/g, "\\f");
   ...
   

5. escapeSpecialChars()

   String.prototype.escapeSpecialChars = function () {
     return this.replace(/\\n/g, '\\\\n')
     .replace(/\\'/g, '\\\'')
     .replace(/\\'/g, '\\\'')
     .replace(/\\&/g, '\\\&')
     .replace(/\\r/g, '\\\r')
     .replace(/\\t/g, '\\\\t')
     .replace(/\\b/g, '\\\b')
     .replace(/\\f/g, '\\\f');
   ...
   

6. escapeForRegExp()

   String.prototype.escapeForRegExp = function() {
       return this.escapeCharacters("^[]{}()\\.$*+?|");
   };
   

7. escapeOnce()

   String.prototype.escapeOnce = function () {
     return this.replace(/"/g, '&quot;').replace(/>/g, '&gt;').replace(/</g, '&lt;').replace(/&(?!([a-zA-Z]+|#\d+);)/g, '&amp;');
   };
   

8. escapeQuotes()

   String.prototype.escapeQuotes = function()
     var m = {"\"": "\\\"", "'": "\\'"};
     return String(this.replace("\\", "\\\\")).replace(/["']/g, function(s)
       return m[s];
     });
   

9. escapeSecure()

   String.prototype.escapeSecure = function () {
     var returnStr, tmpStr;
     tmpStr = $(this);
     tmpStr.find("script").remove();
     returnStr = tmpStr.html();
     return returnStr;
   };