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Angularjs ng-model doesn't work inside ng-if
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The ng-if directive, like other directives creates a child scope. See the script below (or this jsfiddle)
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.0rc1/angular.min.js"></script>
<script...
What is the exact meaning of IFS=$'\n'?
If the following example, which sets the IFS environment variable to a line feed character...
6 Answers
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Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
... was working on to programmatically lighten or darken a hex color by a specific amount. Just pass in a string like "3F6D2A" for the color ( col ) and a base10 integer ( amt ) for the amount to lighten or darken. To darken, pass in a negative number (i.e. -20 ).
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How to capitalize the first character of each word in a string
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WordUtils.capitalize(str) (from apache commons-text)
(Note: if you need "fOO BAr" to become "Foo Bar", then use capitalizeFully(..) instead)
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Symfony 2: How do I check if a user is not logged in inside a template?
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You can check if app.user is set.
{% if app.user %}
# user is logged in
{% else %}
# user is not logged in
{% endif %}
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Optimise PostgreSQL for fast testing
...mance improvements are always coming, so you're probably wasting your time if you're tuning an old version. For example, PostgreSQL 9.2 significantly improves the speed of TRUNCATE and of course adds index-only scans. Even minor releases should always be followed; see the version policy.
Don'ts
Do...
How do I check if an object has a specific property in JavaScript?
How do I check if an object has a specific property in JavaScript?
24 Answers
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How to test if a string is JSON or not?
... @Zalaboza 1234, 0, false, and null are all valid JSON values. If you want a predicate that tests if the JSON represents an object you'll need to do a little more.
– Michael Lang
Nov 18 '15 at 23:15
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Detect network connection type on Android
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If the problem is to find whether the phone's network is connected and fast enough to meet your demands you have to handle all the network types returned by getSubType().
It took me an hour or two to research and write this ...
Is it possible to determine whether ViewController is presented as Modal?
....presentingViewController isKindOfClass:[UITabBarController class]];
}
Swift:
var isModal: Bool {
return self.presentingViewController?.presentedViewController == self
|| (self.navigationController != nil && self.navigationController?.presentingViewController?.presentedViewCon...