I saw from W3C example something like this. An action happens on form submit(an alert). However, when I tried with my own function here, my action doesn't happen (show hidden div). Goal is to show hidden div on form submit using 'GET' request. I am new to javascript/jQuery/ajax, but isn't jQuery supposed make call to server without refreshing page?
not working javascript:
$(document).ready(function(){
$("form").submit(function showDiv(){
document.getElementById("showMe").style.display = "block";
});
});
not working html:
<body>
<form action="" method="GET">
<input type="text" name="LastName" value="Mouse"><br>
<input type="submit" value="Submit">
</form>
<div id="showMe" style="display: none;">
<p>hey this should be hidden</p>
</div>
</body>
You need to cancel the form submit before executing your code:
$(document).ready(function(){
$("form").submit(function(e){
// At this point you'll want to have some type of flag to indicate whether you
// should allow the form submission to continue, or cancel the event. For example,
// it could be whether not showMe is visible (I don't know what you're going for).
e.preventDefault();
$("#showMe").css("display", "block");
// Submit form after your code runs (or whenever you want)
$("form").submit();
});
});
$(document).ready(function(){
$("form").submit(function(e){
e.preventDefault(); // this will prevent the submit
document.getElementById("showMe").style.display = "block";
});
});
Actually the jfiddle you posted is not blocking the form, it shows you an alert that block all js execution (browser behavior), if you select ok in the alert, the form goes through
the event.preventDefault() statement means: don't process anything outside this function
Try this:
$("form").submit(function(e){
e.preventDefault();
$("#showMe").show();
});
You need at least one form element (button or input), that has type "submit".
Then jQuery .submit() or .on('submit',..) will definitely work.
