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PHP + MySQL transactions examples
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331
The idea I generally use when working with transactions looks like this (semi-pseudo-code):
try ...
jQuery empty() vs remove()
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160
empty() will empty the selection of its contents, but preserve the selection itself.
remove()...
Drop a temporary table if it exists
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From SQL Server 2016 you can just use
DROP TABLE IF EXISTS ##CLIENTS_KEYWORD
On previous versions you can use
IF OBJECT_ID('tempdb..##CLIENTS_KEYWORD', 'U') IS NOT NULL
/*Then it exists*/
DROP TABLE ##CLIENTS_KEYWORD
CREATE TABLE ##CLIENT...
How can I change a secret Gist to public?
...the gist to public, but I can't find how to set it publi
Since May, 9th 2014, it is possible: "Change the visibility of your Gists"
You can change the visibility of your Gists whenever you want.
When editing a Gist you'll now notice a new option to toggle the visibility between Public and Secret.
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Convert a List into an ObservableCollection
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edited Sep 13 '17 at 4:14
Casper
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Truncating all tables in a Postgres database
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11 Answers
11
Active
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How to return an NSMutableArray from an NSSet
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218
Since -allObjects returns an array, you can create a mutable version with:
NSMutableArray *arr...
Get all keys of an NSDictionary as an NSArray
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184
Just use
NSArray*keys=[dict allKeys];
In general, if you wonder if a specific class has a ...
iOS 7 status bar back to iOS 6 default style in iPhone app?
...ay confuse you into thinking you are a clever developer who bypassed rule #1, but you are mistaken. The navigation bar is still 64 points tall. Embedding a UINavigationController in a slide-to-reveal style view hierarchy makes this abundantly clear.
Beware of the confusingly-named edgesForExtendedLa...