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Can I safely delete contents of Xcode Derived data folder?
...oject work. Contents of DerivedData folder is generated during the build time and you can delete them if you want. It's not an issue.
The contents of DerivedData will be recreated when you build your projects again.
Xcode8+ Update
From the Xcode8 that removed project option from the window tab ...
Daylight saving time and time zone best practices [closed]
...d the answers to it the definitive guide to dealing with daylight saving time, in particular for dealing with the actual change overs.
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Can you delete multiple branches in one command with Git?
...nch for you with a single invocation. Unfortunately it doesn't do branch name completion. Although, in bash, you can do:
git branch -D `git branch | grep -E '^3\.2\..*'`
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How to use PyCharm to debug Scrapy projects
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The scrapy command is a python script which means you can start it from inside PyCharm.
When you examine the scrapy binary (which scrapy) you will notice that this is actually a python script:
#!/usr/bin/python
from scrapy.cmdline import execute
execute()
This mea...
How to combine class and ID in CSS selector?
...er: Since this is super old and people keep finding it: don't use the tagNames in your selectors. #content.myClass is faster than div#content.myClass because the tagName adds a filtering step that you don't need. Use tagNames in selectors only where you must!
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How do I merge two javascript objects together in ES6+?
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You will be able to do a shallow merge/extend/assign in ES6 by using Object.assign:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
Syntax:
Object.assign(target, sources);
where ...sources represents the...
@ variables in Ruby on Rails
...ference between @title and title ? Since both of them can be variable names. Also, how do I decide which kind of variable I should use? With @ or not?
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Fragment is not being replaced but put on top of the previous one
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You are doing two things wrong here:
You cannot replace a fragment that is statically placed in an xml layout file. You should create a container (e.g. a FrameLayout) in the layout and then add the fragment programatically using FragmentTransaction.
FragmentTransaction.replace expects ...
How to make a python, command-line program autocomplete arbitrary things NOT interpreter
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How to get first and last day of the week in JavaScript
...nd day of the week. I am little bit confuse now with a code. Can your help me?
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