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Limit number of characters allowed in form input text field
...
Add the following to the header:
<script language="javascript" type="text/javascript">
function limitText(limitField, limitNum) {
if (limitField.value.length > limitNum) {
limitField.value = limitField.value.substring(0, limitNum);
}
}
&...
What is non-blocking or asynchronous I/O in Node.js?
...n the code. In the following example, the synchronous operation causes the alerts to fire in sequence. In the async operation, while alert(2) appears to execute second, it doesn't.
Synchronous: 1,2,3
alert(1);
alert(2);
alert(3);
Asynchronous: 1,3,2
alert(1);
setTimeout(() =>...
jQuery - Illegal invocation
... cache : false,
processData: false
}).done(function(response) {
alert(response);
});
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Pass a JavaScript function as parameter
...need to
// refreshCallback(id);
}
function refreshContactList() {
alert('Hello World');
}
addContact(1, refreshContactList);
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How can I get a Bootstrap column to span multiple rows?
...
<div class="row">
<div class="col-4 alert alert-primary">
1
</div>
<div class="col-8">
<div class="row">
<div class="col-6 alert alert-primary">
2
</div>
<div class="col-6 alert alert-pr...
Detecting value change of input[type=text] in jQuery
...tener like this:
$("#myTextBox").on("change paste keyup", function() {
alert($(this).val());
});
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Is there a JavaScript / jQuery DOM change listener?
Essentially I want to have a script execute when the contents of a DIV change. Since the scripts are separate (content script in the Chrome extension & webpage script), I need a way simply observe changes in DOM state. I could set up polling but that seems sloppy.
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“Uncaught TypeError: Illegal invocation” in Chrome
...upport.animationFrame.call(window, function() {});.
The same happens with alert too:
var myObj = {
myAlert : alert //copying native alert to an object
};
myObj.myAlert('this is an alert'); //is illegal
myObj.myAlert.call(window, 'this is an alert'); // executing in context of window
Another ...
var functionName = function() {} vs function functionName() {}
I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.
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Get push notification while App in foreground iOS
...(UNNotificationPresentationOptions) -> Void)
{
completionHandler([.alert, .badge, .sound])
}
iOS 10, Swift 2.3 :
@available(iOS 10.0, *)
func userNotificationCenter(center: UNUserNotificationCenter, willPresentNotification notification: UNNotification, withCompletionHandler completionHand...