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How do I remove blank elements from an array?
...ve anything which matches Object#blank? i.e. nil, "", "\n", " ", "\n\r", etc. Unlike the accepted answer, it will also work without Rails.
– superluminary
Sep 23 '13 at 8:34
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Node.js version on the command line? (not the REPL)
...ut installed node(i.e. node version,v8 version,platform,env variables info etc.)
then just do this.
$ node
> process
process {
title: 'node',
version: 'v6.6.0',
moduleLoadList:
[ 'Binding contextify',
'Binding natives',
'NativeModule events',
'NativeModule util',
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How do I check two or more conditions in one ?
...answered Dec 2 '11 at 11:44
olly_ukolly_uk
10.2k33 gold badges3737 silver badges4545 bronze badges
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CSS content generation before or after 'input' elements [duplicate]
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This is the same reason why it does not work for <br>, <img>, etc. (<textarea> seems to be special).
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Is there a way to iterate over a dictionary?
...ere you need a key in order to get a value . But how can I iterate over all keys and values in a NSDictionary , so that I know what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there something similar in Objective-C ?
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How to convert existing non-empty directory into a Git working directory and push files to a remote
...t rejects because remote contains some minor changes (.README, .gitignore, etc.), try git pull origin master --allow-unrelated-histories to do a merge.
– karlisup
Dec 28 '16 at 12:11
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How to use mod operator in bash?
... answered Mar 31 '14 at 4:06
h__h__
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How do I associate a Vagrant project directory with an existing VirtualBox VM?
...othername".
Stop the machine from provisioning:
Create a file named action_provision in the same dir as the id file, set it's contents to: 1.5:{id} replacing {id} with the id found in step 1.
Setup a new public/private key:
Vagrant uses a private key stored in .vagrant/machines/default/virtualbox/...
Which MySQL datatype to use for an IP address? [duplicate]
I want to get the IP address from $_SERVER['REMOTE_ADDR'] and some other $_SERVER variables, which datatype is the right one for this?
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Add and Remove Views in Android Dynamically?
... views into the container dynamically, using inflate, addView, removeView, etc. There are some visibility control for better UX in the stock Android app. You need add a TextWatcher for the EditText view in each row: when the text is empty you need to hide the Add new button and the delete button. In...