function check_alert (**pcheck**) {
window.alert("You make $"+**pcheck**);
}
var **paycheck** = 1200;
check_alert(**paycheck**);
// alert val: "You make $1200"
you have passed the paycheckvalue to the function argument named pcheck which will now carry this (1200) value to your alert message as it aleready did. p.s.: You are not passing 'names' but 'values' of variables. The variable name is just a handle to its value. 'paycheck' and 'pcheck' are now handling the same value.
Every time I press 'enter' within this paragraph, a new paragraph is created, rather than a line break tag (<br>). How can I force a line break tag to be created instead of a paragraph element?
Have you tried SHIFT+Enter for a new line instead of a new paragraph?
How can the function make an alert with the variable pcheck when the global variable is named paycheck, I'm confused ?
Well, argument names of the function would be useless if they wouldn't be able to receive value from other pointers or variables. It works because you've just passed the value of 'paycheck' varible to the 'pcheck' argument name which will now pass that *value to the *function using it.
It's the same as if you've used a straitforward input to the named argument of the function, like: check_alert(1200);
...that should fix it (JorgeM's advice) and here is a ready to copy-paste (corrected) script...
<script type="text/javascript">
function checkEmail()
{
var email = document.getElementById('xemail');
//alert(email);
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email.value))
{
alert('Please provide a valid email address');
email.focus;
return false;
}
}
</script>
That's why you should be learning some basic JavaScript, so that when you start understanding JavaScript, you will instantly become aware of the fact that: AJAX,JSON and jQuery are nothing but >>JavaScript<<
You should try adding the "bold" part at "this" point of your code: ... document.getElementById('myLuckyPost').appendChild(a); a.click(); } </script> ...
In some crucial coding scenarios, jQuery neglects our need to be giving error feedback, moreover it leans towards suppressing them completely, which is wrong!
How about not trying to attach events to elements before they are created?! Put the script that manipulates the DOM where it belongs: towards the end of the document body.
(the working code)
<!DOCTYPE html>
<html>
<head>
<title>Untitled Document</title>
<script src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
<style>
.none {
display:none;
}
</style>
</head>
<body>
<input type="radio" name='thing' value='valuable' data-id="bank" />Running Event
<input type="radio" name='thing' value='valuable' data-id="school" />Other challenges
<div id="school" class="none">
<label for="name">What was the activity called?</label>
<select id = "myList">
<option value = "1">Virgin London Marathon</option>
<option value = "2">Round the Island cycle challenge</option>
<option value = "3">Kilimanjaro trek</option>
<option value = "4">Thames Path Challenge</option>
</select>
</div>
<div id="bank" class="none"><label for="name">What was the activity called?</label>
<select id = "myList">
<option value = "1">Pancake Making</option>
<option value = "2">Egg and spoon race</option>
<option value = "3">Sack race </option>
<option value = "4">Three leg race</option>
</select></div>
<script>
$(':radio').change(function (event) {
var id = $(this).data('id');
$('#' + id).addClass('none').siblings().removeClass('none');
});
</script>
</body>
</html>
-Sorry maestro, your code ain't working on either one...
Firefox says:: TypeError: tab[i] is undefined
Chrome says:: Uncaught TypeError: Cannot read property 'className' of undefined
Explorer says:: Unable to get property 'className' of undefined or null reference
My question to you is why are you using a dumb statement like "Javascript not working in IE" instead of describing the problem you are having with firefox and chrome, "which are working fine" - instead?
There are lot's of occasions when I happen to be boldly notified that: "this thread is { [xx] months : years} old" etc etc
I don't think that people are that blind or illiterate to not see or understand that a solved ie 5 year old thread, has a five years old solution! Every knowledge seeking surfer will come to that post with backward compatibility in mind and make the best out of it combining the acquired old working code with modern most recent methods and practices.
Neither did I, ...in the past. The question is "can you confirm that it still works as it did before these changes came to be made?"
----------- p.s.: For instance when I hover over the main menu in IE, nothing gets expanded! Why is that?
(Of course) I have a pop-up blocker fully enabled, [and to tell you the truth: it's the only popup blocker that actually works - all other browsers fail to block certain popups, if any] but why would it affect something that it should not?! I don't know...
I'm using IE 9,10 & 11 but am not being able to post a thing! (This is so almost ever since the editor was replaced/updated or something; (Not sure of exactly when!). But; Since then, I'm not being able to use the drop-down menu of the site to navigate sub-sections of Daniweb or write a reply or answering post while on Explorer 9, 10 or 11, so my worst guess is that it has something to do with this fact along all other mentioned so far...
But again, It is possible that this is related to my (somewhat stronger) security settings, and I really hope, my existing security settings are to be blamed for this reduced functionality. i.e.: inability to post new messages, etc., etc.
p.s.: there is some truth in guessing that the drop in activity is related - and maybe - approximately equal to the rationale of IE market share!
If you do this, you will see a downgrade in your SER, traffic loss, and zero customer retention nobody wants popup anything, especially when they are exiting
I encourage you to type a letter in the box below and try to navigate away from this page.
