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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
I use
Rails 3.0.20 and
ruby 1.8.7 (2011-06-30 patchlevel 352)
4 Answers
4
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What is the difference between single and double quotes in SQL?
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edited May 12 '18 at 17:52
cmaher
4,21311 gold badge1717 silver badges3131 bronze badges
a...
Generate .pem file used to set up Apple Push Notifications
..."Certificates" on the left navigation bar. Then, click "+" button.
Step 2: Select Apple Push Notification service SSL (Production) option under Distribution section, then click "Continue" button.
Step 3: Select the App ID you want to use for your BYO app (How to Create An App ID), then click "...
How can you iterate over the elements of an std::tuple?
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20 Answers
20
Active
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isset() and empty() - what to use
...has been set to NULL
Your code would be fine as:
<?php
$var = '23';
if (!empty($var)){
echo 'not empty';
}else{
echo 'is not set or empty';
}
?>
For example:
$var = "";
if(empty($var)) // true because "" is considered empty
{...}
if(isset($var)) //tr...
Delete fork dependency of a GitHub repository
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edited Sep 22 '17 at 19:09
answered Apr 17 '13 at 6:13
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How to match all occurrences of a regex
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edited May 18 '12 at 6:23
Andrew Marshall
87.3k1818 gold badges202202 silver badges204204 bronze badges
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What are the differences between django-tastypie and djangorestframework? [closed]
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205
As the author of django-rest-framework, I've got an obvious bias ;) but my hopefully-fairly-ob...
Need command line to start web browser using adb
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200
Running this command will start a web browser in android:
adb shell am start -a android.inten...