Nodejs String Contains contains(str)

Method Source Code

String.prototype.contains = function(str) {
  return this.toLowerCase().indexOf(str.toLowerCase()) > -1;
};

Related

1. contains(searchString)

   String.prototype.contains = function (searchString) {
     return !!~this.indexOf(searchString);
   };
   

2. contains(str)

   String.prototype.contains = function(str) {      
     return this.indexOf(str) != -1;
   };
   module.exports = {
     isNullOrEmpty: function(str){
       return str == null || str == '';
   };
   

3. contains(str)

   String.prototype.contains = function(str) {
     return this.indexOf(str) > -1;
   };
   

4. contains(str)

   String.prototype.contains = function(str) {
       return this.indexOf(str) !== -1;
   };
   

5. contains(str)

   String.prototype.contains = function(str) {
       if (typeof str !== 'string') return false;
       return this.indexOf(str) !== -1;
   };
   

6. contains(str)

   String.prototype.contains = function(str)
     return this.indexOf(str) != -1;
   };
   

7. contains(str)

   String.prototype.contains = function(str){
     var filters = str.toLowerCase().split(/[ ,_\-]+/);
     var tokens = this.toLowerCase().split(/[ ,\-]+/);
     for (var i = 0; i < filters.length; i++) {
       var match = false;
       for (var j = 0; j < tokens.length; j++) {
         if (tokens[j].startsWith(filters[i])) {
           match = true;
           break;
   ...
   

8. contains(str)

   String.prototype.contains = function (str) {
       return this.indexOf(str) > -1;
   };
   String.prototype.startsWith = function (str) {
       return this.indexOf(str) == 0;
   };
   String.prototype.endsWith = function (str) {
       return this.indexOf(str) > -1 && (this.indexOf(str) + str.length) == this.length;
   };
   ...
   

9. contains(str)

   String.prototype.contains = function(str) {
     return this.indexOf(str) > -1;
   };
   String.prototype.endsWith = function(suffix) {
     return this.indexOf(suffix, this.length - suffix.length) !== -1;
   };