validation - How to validate window.prompt in javascript? -

validation - How to validate window.prompt in javascript? -

is there way validate text of input textbox of prompt box displayed calling window.prompt() in javascript?

i mean not close prompt box when clicking ok button if string written in input textbox contains numbers or other illegal chars defined me, etc.

sorry bad english.

var obj = {}; function validate( str ){ homecoming !! str; //or own validation } function setname ( error_message ) { var name = prompt( (error_message || '') + "enter name: "); if ( ! validate( name ) ) { setname( 'invalid name entered\n' ); } else { obj.name = name; } }

if want utilize prompt solution. but, i'd suggest utilize modal dialog or create own component.

javascript validation