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Easy pretty printing of floats in python?
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As noone has added it, it should be noted that going forward from Python 2.6+ the recommended way to do string formating is with format, to get ready for Python 3+.
print ["{0:0.2f}".format(i) for i in a]
The new string formati...
C++ preprocessor __VA_ARGS__ number of arguments
...wer. And even if I managed to find the intended answer it does seem a poor one as it embeds an hardcoded "-1" that will be compiled. There are better methods.
– ceztko
Dec 18 '14 at 0:03
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How to Find And Replace Text In A File With C#
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@Alexander Right. One chunk ends with "...som", and the next begins with "e text...". Makes it a much more complicated problem.
– djv
May 16 '16 at 20:11
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Where to host an Open Source Project: CodePlex, Google Code, SourceForge? [closed]
...e Adware). Avoid at all costs. GitHub is as of now still the most popular one, although there are alternatives (e.g., BitBucket offers unlimited private repos for free for up to 5 users.)
It's crazy how much the landscape changed in the past few years, and if you're reading this in the future, may...
What does a tilde do when it precedes an expression?
...1 1111 1111 1111 1111 1110
So what is the use of it, then? When might one ever use it?
It has a quite a few uses. If you're writing low level stuff, it's handy. If you profiled your application and found a bottleneck, it could be made more performant by using bitwise tricks (as one possible t...
Python None comparison: should I use “is” or ==?
My editor warns me when I compare my_var == None , but no warning when I use my_var is None .
3 Answers
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How do I iterate over a JSON structure? [duplicate]
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Taken from jQuery docs:
var arr = [ "one", "two", "three", "four", "five" ];
var obj = { one:1, two:2, three:3, four:4, five:5 };
jQuery.each(arr, function() {
$("#" + this).text("My id is " + this + ".");
return (this != "four"); // will stop running to sk...
Ruby on Rails: how do I sort with two columns using ActiveRecord?
I want to sort by two columns, one is a DateTime ( updated_at ), and the other is a Decimal (Price)
7 Answers
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How to select unique records by SQL
...R()
In the Common Table Expression (CTE), select the ROW_NUMBER(), partitioned by the group column and ordered in the desired order. Then SELECT only the records that have ROW_NUMBER() = 1:
WITH CTE AS (
SELECT *
,row_number() OVER(PARTITION BY word, num ORDER BY id) AS row_num
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How to rebase local branch with remote master
I have a cloned project from a master branch from remote repository remote_repo . I create a new branch and I commit to that branch. Other programmers pushed to remote_repo to the master branch.
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