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“var” or no “var” in JavaScript's “for-in” loop?
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If you write var i in the for loop the alert shows 2.
JavaScript Scoping and Hoisting
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How to filter Android logcat by application? [duplicate]
How can I filter Android logcat output by application? I need this because when I attach a device, I can't find the output I want due to spam from other processes.
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Git: Correct way to change Active Branch in a bare repository?
... access to the remote repo, see my previous answer.
Remember that a command like git remote set-head:
doesn't change the default branch of the remote repo.
It only changes a remote tracking branch stored in your local repo as refs/remotes/<name>/HEAD
doesn't change HEAD itself (again, onl...
Make virtualenv inherit specific packages from your global site-packages
...ent with virtualenv --system-site-packages . Then, activate the virtualenv and when you want things installed in the virtualenv rather than the system python, use pip install --ignore-installed or pip install -I . That way pip will install what you've requested locally even though a system-wide vers...
How to revert (Roll Back) a checkin in TFS 2010
... installed).
The other option is using the TFS 2010 version control command-line application:
tf.exe rollback
I have information about both approaches on my blog post.
For Team Foundation Server 2012, 2013, or Visual Studio Online, rollback is now built-in directly to Source Control Explorer ...
Java: Best way to iterate through a Collection (here ArrayList)
...erbose IMO.
The third version is my preferred choice as well. It is short and works for all cases where you do not need any indexes or the underlying iterator (i.e. you are only accessing elements, not removing them or modifying the Collection in any way - which is the most common case).
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How do I get the time difference between two DateTime objects using C#?
... I just wanted to how many seconds it takes for client to make a REST call and get reply back.
– Ziggler
Feb 14 '19 at 0:04
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How to check if a String contains any of some strings
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Simple and obvious solution. But is there any good ready to use implementation that not require multiple iterations through haystack string? I can implement it by myself, iterating through haystack string characters and comparing fi...
How do you delete a column by name in data.table?
...the following will remove column foo from the data.table df3:
# Method 1 (and preferred as it takes 0.00s even on a 20GB data.table)
df3[,foo:=NULL]
df3[, c("foo","bar"):=NULL] # remove two columns
myVar = "foo"
df3[, (myVar):=NULL] # lookup myVar contents
# Method 2a -- A safe idiom for excl...
How can I get the DateTime for the start of the week?
How do I find the start of the week (both Sunday and Monday) knowing just the current time in C#?
32 Answers
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