javascript - Simple dynamic form -

javascript - Simple dynamic form -

i have ai need validate input .onblur such whenever text input loses focus gets validated same js function.

my problem js function. want grab value of item loses focus.

function valid(){ if (isnan("this should value of text item??")){ }

thankss..

to grab value of item blur, should add together onblur trigger dom element follows:

<input type="text" name="validate_me" onblur="valid(this);" />

that way have access dom element triggered onblur event , can access properties (such value or innerhtml in case of textarea elements.

your valid function can like:

function valid(element) { if (element.value != '' && isnan(element.value)) alert('this field not valid!'); };

javascript forms dynamic input textinput