Underscore to camelCase

index.html

<script src='https://scottdalessandro.github.io/jasmine-total/js/jasmine-suite.min.js'></script>

script.js

/*

Underscore To Camel Case

Write a function to convert a variable name from under_score format to camelCase.

Make sure you support an unlimited number of underscores in the input!


#### Examples:

```js
- INPUT: underToCamel("first_name");
- OUTPUT: "firstName"


- INPUT: underToCamel("my_income_tax_from_2015");
- OUTPUT: "myIncomeTaxFrom2015"
```

*/



// Write Code Below:

function underToCamel(str){
  str = str.toLowerCase();
  var array = (str.split('_'));
  var newArray = [];
  for (var index = 1; index < array.length; index ++){
    newArray.push(array[index].charAt(0).toUpperCase()+array[index].slice(1));
  }
 return array[0] + newArray.join('');
}


























































































































describe('underscore_toCamelCase', function(){
	it('underToCamel is a function', function(){
		expect(typeof underToCamel).toEqual('function');
	});

	it('underToCamel returns a number value', function(){
		expect(typeof underToCamel("html_css")).toEqual('string');
	});

	it('removes any "_" characters and makes the next character capitalized', function(){
		expect(underToCamel('new_york')).toEqual('newYork');
		expect(underToCamel('grace_hopper')).toEqual('graceHopper');	
	});

	it('removes any "_" characters and makes the next character capitalized for multiple words', function(){
		expect(underToCamel('new_york_the_big_apple')).toEqual('newYorkTheBigApple');
		expect(underToCamel('u_s_a')).toEqual('uSA');	
	});

});

underscore-to-camelcase.markdown

Underscore to camelCase

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