jquery prevents form from submitting code repeatedly_jquery

My solution is as follows (only for the client):
Add the disabled attribute to the button after the user clicks the submit button

Copy code The code is as follows:

$("input:submit").each(function() {
var srcclick = $(this).attr("onclick");
if (typeof(srcclick)=="function"){
$(this).click(function() {
if (srcclick()) {
setdisabled(this);
return true;
}
return false;
});}
});
function setdisabled(obj) {
setTimeout(function() { obj.disabled = true; }, 100 );
}