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Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?
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What do linkers do?
...extension.
After the object file is created, the linker comes into play. More often than not, a real program that does anything useful will need to reference other files. In C, for example, a simple program to print your name to the screen would consist of:
printf("Hello Kristina!\n");
When the...
How to focus on a form input text field on page load using jQuery?
.... I found this via google.
Its also worth noting that its possible to use more than one selector, thus you can target any form element, and not just one specific type.
eg.
$('#myform input,#myform textarea').first().focus();
This will focus the first input or textarea it finds, and of course yo...
How do I use PHP to get the current year?
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With PHP heading in a more object-oriented direction, I'm surprised nobody here has referenced the built-in DateTime class:
$now = new DateTime();
$year = $now->format("Y");
or one-liner with class member access on instantiation (php>=5.4...
How to close activity and go back to previous activity in android
... finish() to fix this" I think 'fix' is a bad choice of words here. It's more like you're avoiding execution of the following lines (not fixing).
– Lo-Tan
Jun 20 '13 at 17:37
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How do I remove all specific characters at the end of a string in PHP?
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@Alix: yes forgot about rtrim a lot more easier ... !
– RageZ
Jan 13 '10 at 1:44
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Bordered UITextView
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Some more information on "layer" being read-only in UIView (the layer property is, but you can set values in the layer for a view): stackoverflow.com/questions/12837077/…
– Kendall Helmstetter Gelner
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Best way to check for nullable bool in a condition expression (if …)
...ol == true) { ... } // true
else { ... } // false or null
Or if you want more options...
bool? nullableBool = true;
if (nullableBool == true) { ... } // true
else if (nullableBool == false) { ... } // false
else { ... } // null
(nullableBool == true) will never return true if the bool? is null ...
How to grab substring before a specified character jQuery or JavaScript
...treetAddress,] = addy.split(','); This is helpful for cases when you want more than one value, such as: let [callerIdName, callerId] = callerIdString.split('<'); (original callerIdString format is MCMULLIN,PARKER <+1XXXXXXXXXX>)
– parker_codes
Aug 31...