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Spark java.lang.OutOfMemoryError: Java heap space
...ease could you ask a new question? For fear of starting a long a comment thread :) If you are having issues, likely other people are, and a question would make it easier to find for all.
– samthebest
Sep 2 '15 at 9:12
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How do I put two increment statements in a C++ 'for' loop?
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I've read several times that the comma in the first or third part of a for loop is not the comma operator, but just a comma separator. (However, I fail to find an official source for this, since I'm particularly bad at parsing the...
How to get a time zone from a location using latitude and longitude coordinates?
...z
Implementations that use the older tz_world data
latlong - Go library (Read this post also.)
TimeZoneMapper - Java library
tzwhere - JavaScript/Node library
pytzwhere - Python library
timezone_finder - Ruby library
LatLongToTimeZone - Java and Swift libraries
What Time is it here? - Blog post de...
Step-by-step debugging with IPython
From what I have read, there are two ways to debug code in Python:
15 Answers
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NULL vs nil in Objective-C
...s for id. Therefore, you pass NULL. If you pass nil, you are lying to your reader, who will think this method takes an id.
– Peter Hosey
Feb 17 '09 at 18:50
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Should you declare methods using overloads or optional parameters in C# 4.0?
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@Shekshar: Have you tried it? Read the spec for details, but basically in a tie-breaker a method where the compiler hasn't had to fill in any optional parameters wins.
– Jon Skeet
Sep 22 '16 at 5:07
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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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Also documented in the postgres docs (an excellent resource, plus easy to read, too).
ALTER TABLE tablename ADD CONSTRAINT constraintname UNIQUE (columns);
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is of a type that is invalid for use as a key column in an index
... the 900-byte limit for the maximum total size of all index key columns."
Read more at MSDN
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What is the purpose of a self executing function in javascript?
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@AlexanderBird but that already happens in local variables inside functions: function(){ var foo = 3; alert(foo); }; alert(foo); So I still don't get it
– João Pimentel Ferreira
Dec 3 '17 at 19:08
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How to set up a git project to use an external repo submodule?
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You have a project -- call it MyWebApp that already has a github repo
You want to use the jquery repository in your project
You want to pull the jquery repo into your project as a submodule.
Submodules are really, really easy to reference and use. Assuming you already ...