Use of # in JavaScript (outside of jQuery and CSS)? -

i know of use of # in jquery , css, in vanilla javascript environment has no jquery or css intervention, # have use?

yes, in javascript can use character # inside strings.

for example, # begins id selector in css, can use in js:

document.queryselector('#someid');

and in urls, # begins hash. in javascript can hash of object implements urlutils functionality using hash property:

location.hash; // '#somehash' location.hash = '#anotherhash';

you can use delimiter strings:

var arr = ['ab', 'c', 'de', 'fg', 'h', 'ij']; // longer var arr = 'ab#c#de#fg#h#ij'.split('#');       // shorter

and of course may want string contain # character. in case, use #:

var str = 'this string has number sign @ end: #';

apart strings, can use # in regular expressions:

var rg = /#/; // matches character `#` literally

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