Nodejs String Contains contains(s)

Method Source Code

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

Related

1. contains(pStr)

   String.prototype.contains = function(pStr) {
     return this.indexOf(pStr) > -1;
   };
   String.prototype.doUpperCase = function(pBeginIndex, pLength) {
     pLength = pLength || 1;
     return this.substring(pBeginIndex, pLength).toUpperCase() + this.substring(pBeginIndex + pLength);
   };
   String.prototype.doLowerCase = function(pBeginIndex, pLength) {
     pLength = pLength || 1;
   ...
   

2. contains(palavra)

   String.prototype.contains = function (palavra) {
     let indice = this.trim().indexOf(palavra);
     return indice >= 0;
   

3. contains(pattern)

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

4. contains(pattern)

   String.prototype.contains = function(pattern) {
       return this.indexOf(pattern.canonize())>=0;
   };
   

5. contains(s)

   String.prototype.contains = function(s) {
     return this.indexOf(s) >= 0;
   };
   

6. contains(s)

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

7. contains(search)

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

8. contains(search)

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

9. contains(searchFor)

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