Nodejs String Case Convert toSnakeCase()

Method Source Code

/*@//  ww w. jav  a  2  s .  c  o m
  @file: src/tosnakecase.js
  @version: 1.0.0
  @website: http://webman.io/missing.js/tosnakecase.js
  @author: Mark Topper
  @author-website: http://webman.io
  @function: toSnakeCase
  @var:  String  the string to turn into snake case
  @description: convert a string into snake case, like from "helloWorld" to "hello_world"
@*/
String.prototype.toSnakeCase = function(){
   return this.replace(/([A-Z])/g, function($1){return "_"+$1.toLowerCase();});
};

Related

1. toAlternatingCase()

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

2. 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];
   ...
   

3. snakeCase()

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

4. snakeCaseDash()

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

5. snake_case()

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

6. toCap()

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

7. toCap()

   String.prototype.toCap = function() {
     var string = this.toString();
     if(!string.length) return;
     var lastName = string.split(' ').pop();
     var firstName = string.split(' ')[0];
     lastName = lastName[0].toUpperCase() + lastName.slice(1);
     firstName = firstName[0].toUpperCase() + firstName.slice(1);
     string = firstName + " " + lastName;
     return string;
   ...
   

8. toCap()

   'use strict'
   export default (obj) => String.prototype.toCap.apply(obj)
   String.prototype.toCap = function () {
    return this.toUpperCase().charAt(0) + this.slice(1,(this.length));