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Static variables in JavaScript
...cut, you could just do countMyself.counter = countMyself.counter || initial_value; if the static variable is never going to be falsey (false, 0, null, or empty string)
– Kip
Sep 23 '11 at 17:25
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What is the difference between the kernel space and the user space?
...ered Mar 26 '12 at 7:06
Aquarius_GirlAquarius_Girl
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Animate change of view controllers without using navigation controller stack, subviews or modal cont
...iewController{
[self addChildViewController:aNewViewController];
__weak __block ViewController *weakSelf=self;
[self transitionFromViewController:self.currentViewController
toViewController:aNewViewController
duration:1.0
...
AngularJS For Loop with Numbers & Ranges
...
A short way of doing this would be to use Underscore.js's _.range() method. :)
http://underscorejs.org/#range
// declare in your controller or wrap _.range in a function that returns a dynamic range.
var range = _.range(1, 11);
// val will be each number in the array not the inde...
Amazon S3 boto - how to create a folder?
...der abc/123/ in your bucket, it's a piece of cake with Boto
k = bucket.new_key('abc/123/')
k.set_contents_from_string('')
Or use the console
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Send attachments with PHP Mail()?
...a convenient place in your project.
Include the main script file -- require_once('path/to/file/class.phpmailer.php');
Now, sending emails with attachments goes from being insanely difficult to incredibly easy:
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
$email = new PHP...
Check if a variable is of function type
...
Underscore.js uses a more elaborate but highly performant test:
_.isFunction = function(obj) {
return !!(obj && obj.constructor && obj.call && obj.apply);
};
See: http://jsperf.com/alternative-isfunction-implementations
EDIT: updated tests suggest that typeof ...
EF Migrations: Rollback last applied migration?
...some clarification to this thread:
Update-Database -TargetMigration:"name_of_migration"
What you are doing above is saying that you want to rollback all migrations UNTIL you're left with the migration specified. Thus, if you use GET-MIGRATIONS and you find that you have A, B, C, D, and E, then u...
How to convert string to boolean php
...n you'll need to check for the presence or otherwise of that value.
$test_mode_mail = $string === 'true'? true: false;
EDIT: the above code is intended for clarity of understanding. In actual use the following code may be more appropriate:
$test_mode_mail = ($string === 'true');
or maybe us...
Identify if a string is a number
...you can discard the out parameter
var isNumeric = int.TryParse("123", out _);
The var s can be replaced by their respective types!
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