Question

I want to use isElementContentWhitespace on text nodes,
but not all browsers support it, so I need to check if its supported,
then if is, use it, if not implement jquery’s $.trim…

i’ve tried doing something like this with no luck on IE, good on FF:

var testEl = document.createElement('span');  
testEl.innerHTML = ' ';  
alert( testEl.firstChild.isElementContentWhitespace );

Answer 1

Test if any Property is available for a DOM element like so:

var textNode = document.createTextNode('text');  
console.log( 'isElementContentWhitespace' in textNode );

Note that isElementContentWhitespace is Obsolete