Question

Checks if this sequence contains a given substring.

Signature

StringLikeSequence.contains = function(substring) { /*...*/ }

StringLikeSequence.contains = function contains(substring) {
  return this.indexOf(substring) !== -1;
}

Name	Type(s)	Description
substring	string	The substring to check for.
returns	boolean	Whether or not this sequence contains substring.

Examples

Lazy('hello').contains('ell') // => true
Lazy('hello').contains('')    // => true
Lazy('hello').contains('abc') // => false