Nodejs String Case Convert snakeCase()

Method Source Code

String.prototype.snakeCase = function() {
   return this.replace( /([A-Z])/g, function( $1 ) {return "_" + $1.toLowerCase();} );
};

Related

1. toAlternatingCase()

   String.prototype.toAlternatingCase = function () {
     var _str = ""; 
     for(var _c = 0; _c < this.length; _c++){
       _str += ((this[_c] === this[_c].toUpperCase())? this[_c].toLowerCase() : this[_c].toUpperCase());
     return _str;
   

2. toAlternatingCase()

   String.prototype.toAlternatingCase = function () {
     var result = [];
     var letters = this.split("");
     letters.forEach(function(char) {
       if ((char.charCodeAt(0) >= 97) && (char.charCodeAt(0) <= 122)) {
         result.push(char.toUpperCase());
       } else if ((char.charCodeAt(0) >= 65) && (char.charCodeAt(0) <= 90)){
         result.push(char.toLowerCase());
       } else {
   ...
   

3. toAlternatingCase()

   String.prototype.toAlternatingCase = function () {
     var newStr = "";
     for (var i = 0; i < this.length; i++){
       if (this.charAt(i).toUpperCase() === this.charAt(i)){
          newStr += this.charAt(i).toLowerCase();
       } else {
          newStr += this.charAt(i).toUpperCase();  
     return newStr;
   

4. toAlternatingCase()

   String.prototype.toAlternatingCase = function () {
     return this.toString().split('')
                           .map(l => l.match(/[a-z]/)  ? l.toUpperCase() : l.toLowerCase())
                           .join('');
   

5. toAlternatingCase()

   String.prototype.toAlternatingCase = function() {
     var output = '';
     for (var i=0; i<this.length; i++) {
       if (this[i].toLowerCase() === this[i]) {
         output = output + this[i].toUpperCase();
       } else if (this[i].toUpperCase() === this[i]) {
         output = output + this[i].toLowerCase();
       } else {
         output = output + this[i];
   ...
   

6. snakeCaseDash()

   String.prototype.snakeCaseDash = function() {
     return this.replace( /([A-Z])/g, function( $1 ) {return "-" + $1.toLowerCase();} );
   };
   

7. snake_case()

   String.prototype.snake_case = function(){
       return this
           .replace( /[A-Z]/g, function($1) { return '_' + $1 } )
           .toLowerCase();
   

8. toSnakeCase()

   String.prototype.toSnakeCase = function(){
     return this.replace(/([A-Z])/g, function($1){return "_"+$1.toLowerCase();});
   };
   

9. toCap()

   String.prototype.toCap = function () {
     var result = this.toUpperCase().charAt(0) + this.slice(1, this.length);
     return result;
   };