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Wait until all jQuery Ajax requests are done?
How do I make a function wait until all jQuery Ajax requests are done inside another function?
20 Answers
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How to test an SQL Update statement before running it?
...verflow.com/a/18499823/1416909
):
# do some stuff that should be conditionally rollbacked later on
SET @v1 := UPDATE MyGuests SET lastname='Doe' WHERE id=2;
IF(v1 < 1) THEN
ROLLBACK;
ELSE
COMMIT;
END IF;
But I would suggest to use the language wrappers available in your favorite progr...
Switch on Enum in Java [duplicate]
... about. Also, I've seen code that puts enum constants into arrays and then indexes into the arrays - this opens the possibility of array index out of bounds exceptions - just use the enum! Java enums are very, very powerful. Learn all that you can about them to use them effectively.
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Make an HTTP request with android
...e. Instead use either:
OkHttp
HttpUrlConnection
Original Answer
First of all, request a permission to access network, add following to your manifest:
<uses-permission android:name="android.permission.INTERNET" />
Then the easiest way is to use Apache http client bundled with Android:
Ht...
How to do something before on submit? [closed]
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Assuming you have a form like this:
<form id="myForm" action="foo.php" method="post">
<input type="text" value="" />
<input type="submit" value="submit form" />
</form>
You can attach a onsubmit-event with jQuery like this:
$('#myForm').submit(function() {
a...
Joins are for lazy people?
...g done via the client, because it avoids DB roundtrips, and the DB can use indexes to perform the join.
Off the top of my head, I can't even imagine a single scenario where a correctly used join would be slower than the equivalent client-side operation.
Edit: There are some rare cases where custom...
Test if a string contains any of the strings from an array
...rt org.apache.commons.lang.StringUtils;
String Utils
Use:
StringUtils.indexOfAny(inputString, new String[]{item1, item2, item3})
It will return the index of the string found or -1 if none is found.
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Does Android support near real time push notification?
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developer.android.com/videos/index.html#v=PLM4LajwDVc Google I/O 2010 Presentation about Push Notifications
– vokilam
Feb 2 '11 at 8:56
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For a boolean field, what is the naming convention for its getter/setter?
...e section of Sun's code conventions where boolean getter names are specifically covered? I could not find it.
– Konstantin Pelepelin
Mar 29 '17 at 17:36
4
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Get the Row(s) which have the max count in groups using groupby
...ALL the rows where count equals max in each group", while idxmax Return[s] index of first occurrence of maximum over requested axis" according to the docs (0.21).
– Max Power
Dec 19 '17 at 11:55
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