input - Display random text based on checkbox selection (javascript) -
i'm getting grips javascript , need following:
have 4 checkboxes text "red, blue, yellow, green". when user clicks button, 1 of colours display randomly text.
any suggestions how javascript?
i believe trying do:
http://jsfiddle.net/derekl/qggws/
*i using jquery here explanatory purposes. convert pure javascript if want to.
$("button").click(function(){ $colors = $("input:checked"); //get checkboxes checked if( $colors.length != 0){ //at least 1 checkbox has checked var index = math.floor(math.random()*$colors.length); //generate ran. num $("span").html($colors[index].value); //show value }else{ alert("choose color!"); //tell user check @ least 1 box } }); one of randomly chosen color list of checked boxes show click on button.
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