Nodejs String Contains contains(str)

Here you can find the source of contains(str)

Method Source Code

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

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

Related

  1. contains(str)
    String.prototype.contains = function(str) {
        if (typeof str !== 'string') return false;
        return this.indexOf(str) !== -1;
    };
    
  2. contains(str)
    String.prototype.contains = function(str) {
      return this.toLowerCase().indexOf(str.toLowerCase()) > -1;
    };
    
  3. contains(str)
    String.prototype.contains = function(str)
      return this.indexOf(str) != -1;
    };
    
  4. 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;
    ...
    
  5. 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;
    };
    ...
    
  6. contains(str, ignoreCase)
    String.prototype.contains = function(str, ignoreCase) {
        return (ignoreCase ? this.toUpperCase() : this)
                .indexOf(ignoreCase ? str.toUpperCase() : str) >= 0;
    };
    String.prototype.startsWith = function(str) {
        return this.indexOf(str) == 0;
    };
    
  7. contains(str, index)
    String.prototype.contains = function(str, index) {
      return (this.indexOf(str, index) !== -1) ? true : false;
    
  8. contains(str,startIndex)
    String.prototype.contains = function(str,startIndex) {
        return -1 !== String.prototype.indexOf.call(this,str,startIndex);
    };
    
  9. 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"));