isBalanced

by Jason Green

HTML

<div id="out">

</div>

JavaScript

function isBalanced(str) {
	let	old_length = str.length
  let new_length = 0
	let new_string = str
  
 	while (old_length != new_length) {
		new_string = clearBrackets(new_string)
    old_length = new_length
    new_length = new_string.length
  }
  
  return new_string
	
}

function clearBrackets(str) {
	l
 str.replace(/\(\)/g, '')
   str.replace(/\[\]/g, '')
  return str.replace(/\{\}/g, '')
}


log('(()) true ' + isBalanced('(())')); // true
log('()() true ' + isBalanced('()()')); // true
log('(() false '  + isBalanced('(()')); // false
log(')( false '   + isBalanced(')(')); // false
log('(()))( false ' + isBalanced('(()))(')); // false

log('{[()]} true '   + isBalanced('{[()]}')); // true
log('{}() true '   + isBalanced('{}()')); // true
log('{}()} false '   + isBalanced('{}()}')); // false
log('{[}] false '   + isBalanced('{[}]')); // false















function log(str) {
	var prev = document.getElementById('out').innerHTML;
  document.getElementById('out').innerHTML = prev + str + '<br>';
}























































/*log('{[()]} true '   + isBalanced('{[()]}')); // true
log('{}() true '   + isBalanced('{}()')); // true
log('{}()} false '   + isBalanced('{}()}')); // false
log('{[}] false '   + isBalanced('{[}]')); // false !!!!!!!!!!!*/