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How to display gpg key details without importing it?
... ACK, this is very good, doesn't require local personal keyring etc. does display the key name... works best.
– Florian Heigl
Apr 30 '17 at 16:22
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Objective-C class -> string like: [NSArray className] -> @“NSArray”
... the class, including its name, the methods it implements, the superclass, etc. NSStringFromClass just pulls the name of the class from this struct and converts it to an NSString. Don't store the class name in a static NSString, it won't offer any performance advantage.
– dream...
Fastest check if row exists in PostgreSQL
...f a single row from the batch exists in the table because then I know they all were inserted.
8 Answers
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How to add a footer to a UITableView in Storyboard
...an then drag subviews such as labels and buttons there, adjust the height, etc.
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How to check whether a given string is valid JSON in Java
...es (and stores) the whole json. It converts numbers to Integer/Long/Double etc. This is more than just syntax check, it stores whole json in the memory. This might be significant for intensive loads. If better solution for syntax check exists?
– Oleg Vazhnev
De...
What is NoSQL, how does it work, and what benefits does it provide? [closed]
...base system which supports fast access to large binary objects (docs, jpgs etc) using a key based access strategy. This is a departure from the traditional SQL access which is only good enough for alphanumeric values. Not only the internal storage and access strategy but also the syntax and limit...
Difference between binary semaphore and mutex
...ion semaphores are used to protect shared resources (data structure, file, etc..).
A Mutex semaphore is "owned" by the task that takes it. If Task B attempts to semGive a mutex currently held by Task A, Task B's call will return an error and fail.
Mutexes always use the following sequence:
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UIButton: how to center an image and a text using imageEdgeInsets and titleEdgeInsets?
...t, configure the text of titleLabel (because of styles, i.e, bold, italic, etc). Then, use setTitleEdgeInsets considering the width of your image:
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button setTitle:title forState:UIControlStateNormal];
[button.titleLabel set...
invalid multibyte char (US-ASCII) with Rails and Ruby 1.9
...ontroller < ApplicationController
Now you can use ö, ä ,ü, ß, "", etc.
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How to remove the first character of string in PHP?
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Note that lrtim will remove all :::::. Sometimes this is not desired behavior.
– CoR
Nov 20 '13 at 14:02
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