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Early exit from function?
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@dbme: Functions in JavaScript always return. The return statement is implicit if it hasn't been provided. The default return value is undefined, and that's what my primary solution provides. The article you referenced is talking about doing return ...
Why does JQuery have dollar signs everywhere?
... Unless you are using another language like PHP to populate javascript in your site using HTMLdocs, at which point that dollar sign serves the additional purpose of breaking everything since PHP does use the dollar sign to start all variables. (A reason that if you're sharing jQuery scrip...
How can I change the current URL?
I have the following code that changes the pages from within JavaScript:
5 Answers
5
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Get first and last date of current month with JavaScript or jQuery [duplicate]
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I fixed it with Datejs
This is alerting the first day:
var fd = Date.today().clearTime().moveToFirstDayOfMonth();
var firstday = fd.toString("MM/dd/yyyy");
alert(firstday);
This is for the last day:
var ld = Date.today().clearTime().moveToLastDayOfMo...
Detect when an image fails to load in Javascript
....onerror=imageNotFound;
tester.src=URL;
}
function imageFound() {
alert('That image is found and loaded');
}
function imageNotFound() {
alert('That image was not found.');
}
testImage("http://foo.com/bar.jpg");
And my sympathies for the jQuery-resistant boss!
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How and why does 'a'['toUpperCase']() in JavaScript work?
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foo.bar and foo['bar'] are equal so the code you posted is the same as
alert('a'.toUpperCase())
When using foo[bar] (note tha lack of quotes) you do not use the literal name bar but whatever value the variable bar contains. So using the foo[] notation instead of foo. allows you to use a dynami...
Detect permission of camera in iOS
... the requestAccess method will not work. You will have to manually show an alert to ask the user to go to settings and grant permissions.
– Abdullah Umer
Apr 7 '19 at 14:15
ad...
What is meant by 'first class object'?
...E!"};
}
else {
return function (){ return "Holy CRAP!"};
}
}
alert("Men like women is " + men(like(women))); // -> "Holly TRUE!"
alert("Women like men is " + women(like(men))); // -> "Holly TRUE!"
alert("Men like aliens is " + men(like(aliens))); // -> "Holly CRAP!"
alert("Al...
How to check null objects in jQuery
... readable, although both ways are likely readable to someone who's used to scripting languages.
– Sam
Aug 10 '12 at 8:38
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Why are iframes considered dangerous and a security risk?
...useful protection from the reverse case. If you have a lot of third party scripts on your site you need to isolate forms from them. One suggested way of doing that was putting the form in its own minimal page with no third-party javascript, and displaying it in an iframe in the host page. hackern...