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What is a StoryBoard ID and how can i use this?
...ontroller based on that storyboard ViewController. An example use would be from any ViewController:
//Maybe make a button that when clicked calls this method
- (IBAction)buttonPressed:(id)sender
{
MyCustomViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"MyViewCon...
Remove Trailing Slash From String PHP
Is it possible to remove the trailing slash / from a string using PHP?
5 Answers
5
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Clojure: reduce vs. apply
...which it would be silly to replicate in every function which might benefit from them in the vararg case. In such common cases, apply will just add a little overhead. (Note it's nothing to be really worried about.)
On the other hand, a complex function might take advantage of some optimisation oppor...
How to install a private NPM module without my own registry?
...nt to upload to the central registry. The question is, how do I install it from other projects?
14 Answers
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How does Tortoise's non recursive commit work?
...cked out a copy of the SVN branch (my branch) locally to which I've merged from a different branch (which has a completely different folder structure). So basically there are a lot of deletions (of old files) and additions (of new files).
...
Unique BooleanField value in Django?
...if you've set the boolean to True, make sure all others are set to False.
from django.db import transaction
class Character(models.Model):
name = models.CharField(max_length=255)
is_the_chosen_one = models.BooleanField()
def save(self, *args, **kwargs):
if not self.is_the_chos...
Generator Expressions vs. List Comprehension
... example, itertools.count(n) is an infinite sequence of integers, starting from n, so (2 ** item for item in itertools.count(n)) would be an infinite sequence of the powers of 2 starting at 2 ** n.
– Kevin
Jun 1 '15 at 1:48
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Singleton: How should it be used
Edit:
From another question I provided an answer that has links to a lot of questions/answers about singletons: More info about singletons here:
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What methods of ‘clearfix’ can I use?
...pose!
Thierry also offers: "A word of caution: if you start a new project from scratch, go for it, but don’t swap this technique with the one you have now, because even though you do not support oldIE, your existing rules prevent collapsing margins."
Micro Clearfix
The most recent and globall...
Converting RGB to grayscale/intensity
When converting from RGB to grayscale, it is said that specific weights to channels R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140.
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