Nodejs String Contains contains(stringSet)

Method Source Code

String.prototype.contains = function(stringSet) {
  for (var i=0;i<stringSet.length;i++) {
     if (this.indexOf(stringSet[i]) >= 0)
        return true;
  }//  w w  w  . j  a v a 2 s  .  c om
  return false;
};

Related

1. contains(strPattern)

   String.prototype.contains = function(strPattern){
     if(typeof strPattern !== 'string') return false;
     var pattern = new RegExp(strPattern, "i");
     return pattern.test(this);
   console.log("teste".contains("teste"));
   

2. contains(string)

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

3. contains(string)

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

4. contains(string, index)

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

5. contains(string, index)

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

6. contains(strings, index)

   String.prototype.contains = function(strings, index) {
     if(!Array.isArray(strings)) throw Error('1 argument is not an array');
     return strings.some(string => this.includes(string, index), this);
   

7. contains(subString)

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

8. contains(substr)

   String.prototype.contains = function(substr)
     return this.indexOf(substr) > -1;
   

9. contains(substring)

   String.prototype.contains = function(substring) {
     return !!this.match(new RegExp(substring, 'i'));