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What is the difference between required and ng-required?
...g-required allows you to set the required attribute depending on a boolean test (for instance, only require field B - say, a student number - if the field A has a certain value - if you selected "student" as a choice)
As an example, <input required> and <input ng-required="true"> are es...
What is the difference between save and insert in Mongo DB?
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Consider the below document
{ "_id" : 1, "domainName" : "test1.com", "hosting" : "hostgator.com" }
if db already contains the document with _id:1, then
save operation will throw the exception like below
E11000 duplicate key error index ...........
and where as insert operati...
Simulate airplane mode in iPhone Simulator
...onnection is not so useful in some circumstances. For example, when you're testing reachability and internet availability -- sometimes you really do need airplane mode. The simulator not having a working networking connection isn't really the same. Also, some workplaces have computers that have real...
Twitter bootstrap 3 two columns full height
...amic page (col-md-9 can grow), so, your variant shouldn't work, but I will test it. Thanks
– uladzimir
Oct 8 '13 at 6:37
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How to tell if a file is git tracked (by shell exit code)?
...y like grep to see if there was any output.
For example,
git-ls-files test_file.c | grep .
will exit with a zero code if the file is tracked, but a exit code of one if the file is not tracked.
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How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?
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As of 2018/01/14 (latest Oracle JDK is 8u151/152) this is still not enabled by default on Java 8, well over a year after this answer was originally written... However according to java.com/en/jre-jdk-cryptoroadmap.html this is intended to GA on...
What is PEP8's E128: continuation line under-indented for visual indent?
...erators['dev']), \
combine_sample_generators(sample_generators['test'])
Which will give the same style-warning. In order to get rid of it I had to rewrite it to:
return \
combine_sample_generators(sample_generators['train']), \
combine_sample_generators(sample_gener...
What's an easy way to read random line from a file in Unix command line?
...s (or Mac?). @Tracker1's perl one-liner below is more portable (and by my tests, is slightly faster).
– Adam Katz
Dec 19 '14 at 21:49
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sho...
How do I get the APK of an installed app without root access?
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After use adb to copy the package to Downloads adb shell cp /data/app/com.test-1/base.apk /storage/emulated/0/Download.
Then pull the apk from Downloads to your machine by running adb pull /storage/emulated/0/Download/base.apk.
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Pan & Zoom Image
...tation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="MapTest.Window1"
x:Name="Window"
Title="Window1"
Width="1950" Height="1546" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:Controls="clr-...