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jquery if div id has children
...uery object that contains the children. So you just need to check the size and see if it has at least one child.
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How do I get class name in PHP?
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What's the difference between static::class and get_class_name()?
– Alexander Jank
Dec 13 '17 at 17:08
1
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Android - Activity vs FragmentActivity? [duplicate]
I am new in Android. I want to build an app with tab format. I found many documentation where Activity has been used. Also in many cases have used FragmentActivity . I am not sure which will be better to start. Please suggest me should I use Activity or FragmentActivity to start development i...
How can I assign the output of a function to a variable using bash?
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That's not 100% right. Command substitution always strips trailing newlines.
– TheBonsai
Nov 28 '09 at 17:36
7
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How do I pass the this context to a function?
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Javascripts .call() and .apply() methods allow you to set the context for a function.
var myfunc = function(){
alert(this.name);
};
var obj_a = {
name: "FOO"
};
var obj_b = {
name: "BAR!!"
};
Now you can call:
myfunc.call(obj...
How to write string literals in python without having to escape them?
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Understood. And if a 'split()' is used on this string, will it split by lines by default?
– MadPhysicist
Apr 28 '17 at 19:37
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A 'for' loop to iterate over an enum in Java
...iler. Therefore the base class can not declare a method with the same name and thus it does not get included in the automatically generated Javadocs. docs.oracle.com/javase/specs/jls/se7/html/jls-8.html#jls-8.9.2
– Torben
Mar 5 '13 at 9:32
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JQuery: 'Uncaught TypeError: Illegal invocation' at ajax request - several elements
I have two select elements, A and B: when A's selected option changes, B's options must be updated accordingly. Each element in A implies many elements in B, it's a one-to-many relationship (A contains nations, B should contain cities located in the given nation).
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how to remove untracked files in Git?
...is if you don't want to remove ignored files)
Use with Caution!
These commands can permanently delete arbitrary files, that you havn't thought of at first. Please double check and read all the comments below this answer and the --help section, etc., so to know all details to fine-tune your commands...
Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac
... on some record (you're updating every record in the table!) for too long, and your thread is being timed out.
You can see more details of the event by issuing a
SHOW ENGINE INNODB STATUS
after the event (in sql editor). Ideally do this on a quiet test-machine.
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