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Detecting if an NSString contains…?
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Starting from iOS 8.0, there is a new method called containsString exposed in NSString.
– tedyyu
Nov 6 '14 at 8:14
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show all tags in git log
... commit would not be decorated correctly because parse_object had not been called on the second tag and therefore its tagged field had not been filled in, resulting in none of the tags being associated with the relevant commit.
Call parse_object to fill in this field if it is absent so that the...
How can I split a string into segments of n characters?
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This is technically the better answer as it will grab all the text from a string that's not evenly divisible by 3 (it will grab the last 2 or 1 characters).
– Erik
Jun 7 '11 at 0:36
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How do you determine what SQL Tables have an identity column programmatically
I want to create a list of columns in SQL Server 2005 that have identity columns and their corresponding table in T-SQL.
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How do I select an element in jQuery by using a variable for the ID?
For example, the following selects a division with id="2":
6 Answers
6
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Using smart pointers for class members
...Settings object alone? Will the Device object have to be destroyed automatically when the Settings object gets destroyed, or should it outlive that object?
In the first case, std::unique_ptr is what you need, since it makes Settings the only (unique) owner of the pointed object, and the only objec...
Preserving signatures of decorated functions
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This is solved with Python's standard library functools and specifically functools.wraps function, which is designed to "update a wrapper function to look like the wrapped function". It's behaviour depends on Python version, however, as shown below. Applied to the example from the question, ...
How do I inspect the view hierarchy in iOS?
...wered Sep 26 '14 at 5:44
Levi McCallumLevi McCallum
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How to use NSCache
...e to add a sharedInstance property. Just put the following code in a file called something like NSCache+Singleton.swift:
import Foundation
extension NSCache {
class var sharedInstance : NSCache {
struct Static {
static let instance : NSCache = NSCache()
}
r...
How to implement a many-to-many relationship in PostgreSQL?
...anguage) statements could look like this:
CREATE TABLE product (
product_id serial PRIMARY KEY -- implicit primary key constraint
, product text NOT NULL
, price numeric NOT NULL DEFAULT 0
);
CREATE TABLE bill (
bill_id serial PRIMARY KEY
, bill text NOT NULL
, billdate date NOT N...