Kebab-case refers to a programming variable naming convention in which a developer replaces spaces between words by a dash.

For Example

Kebab case: “the-quick-brown-fox-jumps-over-the-lazy-dog”

	hello-world
first-project
	

			
	
			

		
	

• One of its most common uses is for separating words in a URL; take a look at the URL for this post.
• However, dashes in variables can sometimes cause batch scripts and other programs, so be careful.

Here’s the helper function for convert into kebab case in javascript

	const toKebabCase = str =>
    str &&
    str
      .match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
      .map(x => x.toLowerCase())
      .join('-');
	

			
	
			

		
	

	console.log(toKebabCase("Hello World"));
// hello-world
	

			
	
			

		
	

Lodash KebabCase

Converts string to kebab case

Arguments

[string=''] (string): The string to convert.

Returns

(string): Returns the kebab cased string.

	_.kebabCase('Foo Bar');
// => 'foo-bar'

_.kebabCase('fooBar');
// => 'foo-bar'

_.kebabCase('__FOO_BAR__');
// => 'foo-bar'
	

			
	
			

		
	

In JavaScript variable names cannot have a hyphen, it results in an error.

	let my-name = "Adam"
Uncaught ReferenceError: Invalid left-hand side in assignment
	

			
	
			

		
	

JavaScript parses hyphen as a Subtraction Operator (-).We can use hyphens in object property names.