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How to check for an undefined or null variable in JavaScript?
...quality will also return true for undefined.
if (window.variable == null) alert('variable is null or undefined');
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How to load local script files as fallback in cases where CDN are blocked/unavailable? [duplicate]
I’m using a CDN for the following javascript:
10 Answers
10
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Unix shell script find out which directory the script file resides?
Basically I need to run the script with paths related to the shell script file location, how can I change the current directory to the same directory as where the script file resides?
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Determining whether jQuery has not found any element
...e { /* code if not found */ }
You're getting an object returned from that alert because jQuery (almost) always returns the "jQuery object" when you use it, which is a wrapper for the elements jQuery's found that permits method chaining.
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Why split the tag when writing it with document.write()?
Why do some sites (or advertisers that give clients javascript code) employ a technique of splitting the <script> and/or </script> tags up within document.write() calls?
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How to check in Javascript if one element is contained within another
... document.getElementsByTagName('a'); if (parent.contains(allElements[i]) { alert('Link is inside meni'); }
– baron_bartek
Jul 9 '19 at 7:57
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Why should I capitalize my SQL keywords? [duplicate]
...nguages, imagine a js function like this: LET echoMessage = FUNCTION(msg){ ALERT(msg); }
– santiago arizti
Dec 5 '17 at 18:03
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Applications are expected to have a root view controller at the end of application launch
... error stopped appearing. My problem specifically was caused by making a UIAlertView show.
In your case I suggest you check out the code in the tabBarController's active view controller (as it is probably a problem in that view controller).
If that doesn't work, try to set the starting settings in ...
unique object identifier in javascript
...e Object.prototype.a then "a" will be visible when you do for (prop in {}) alert(prop); So you have to make a compromise between augmenting Object.prototype and being able to iterate through record like objects using a for..in loop. This is a serious problem for libraries
– A...
Bootstrap throws Uncaught Error: Bootstrap's JavaScript requires jQuery [closed]
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Try this
Change the order of files it should be like below..
<script src="js/jquery-1.11.0.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/wow.min.js"></script>
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