jquery set all checkbox checked

Question

I am using jquery 1.11.1 and this is my code:

$(\"#rowchkall\").change(function(){
    if($(this).is(\':checked\')){
        $(\"input:checkbox[class=rowchk]         


        

Answer 1

Use .prop() instead of .attr()

$(this).prop('checked', true); //true to check else false uncheck

Your code can be simplified as

$("#rowchkall").change(function () {
    $("input:checkbox.rowchk").prop('checked',this.checked);
});

A Good Read .prop() vs .attr()