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Rails migrations: self.up and self.down versus change
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How to count items in a Go map?
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Use len(m). From http://golang.org/ref/spec#Length_and_capacity
len(s) string type string length in bytes
[n]T, *[n]T array length (== n)
[]T slice length
map[K]T map length (n...
Creating a blurring overlay view
...could use CIGaussianBlur from Core Image (requires iOS 6). Here is sample: https://github.com/evanwdavis/Fun-with-Masks/blob/master/Fun%20with%20Masks/EWDBlurExampleVC.m
Mind you, this is slower than the other options on this page.
#import <QuartzCore/QuartzCore.h>
- (UIImage*) blur:(UIIma...
What are queues in jQuery?
...a PHP script as if it were another PHP script running on the client -- one HTTP request/other operation at a time, so this will definitely be helpful. Just a question: jQuery requires that queues be attached to objects, right? So which object should I use? $(window)?
– PleaseSt...
Is it possible to declare a variable in Gradle usable in Java?
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repositories {
mavenCentral()
// mavenLocal()
// maven { url 'http://localhost/nexus/content/groups/public'; }
}
dependencies {
testCompile 'junit:junit:4.8.2'
compile 'ch.qos.logback:logback-classic:1.1.2'
}
test {
logger.info '==test=='
systemProperty 'MY-VAR1', 'VALUE-T...
Thread Safety in Python's dictionary
...a lock here will add almost no overhead, and will give you peace of mind.
http://effbot.org/pyfaq/what-kinds-of-global-value-mutation-are-thread-safe.htm has more details.
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Mercurial (hg) commit only certain files
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How to align this span to the right of the div?
...
If you can modify the HTML: http://jsfiddle.net/8JwhZ/3/
<div class="title">
<span class="name">Cumulative performance</span>
<span class="date">20/02/2011</span>
</div>
.title .date { float:right }
.title .name...
What does the “expand” option do in grunt-contrib-copy? The examples all use it but the docs say not
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How to add a search box with icon to the navbar in Bootstrap 3?
...avbar-brand" runat="server" href="~/">
<img src="http://placehold.it/200x40/3A1B37/ffffff/?text=Apllicatin"></a>
<div class="col-md-6 col-sm-8 col-xs-11 navbar-left">
<div class="navbar-form " role="search">
...