how to remove spaces in javascript

str.replace(/\s+/g, '')

.replace(/ /g,'')

const removeSpaces = str => str.replace(/\s/g, '');

// Example
removeSpaces('hel lo wor ld');      // 'helloworld'

str = str.replace(/\s/g, '');

string.split(" ").join("")

str = str.trim();

var str = '/var/www/site/Brand new document.docx';

document.write( str.replace(/\s/g, '') );

var a = b = " /var/www/site/Brand new   document.docx ";

console.log( a.split(' ').join('') );
console.log( b.replace( /\s/g, '') );