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How do I copy a hash in Ruby?
I'll admit that I'm a bit of a ruby newbie (writing rake scripts, now). In most languages, copy constructors are easy to find. Half an hour of searching didn't find it in ruby. I want to create a copy of the hash so that I can modify it without affecting the original instance.
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How is malloc() implemented internally? [duplicate]
...e the system calls requesting more memory pages from the operating system.
Now there are a few modification to optimize heap operations.
For large memory allocations
(typically > 512 bytes, the heap
manager may go straight to the OS and
allocate a full memory page.
The heap
may specify a minimum...
iPhone/iOS JSON parsing tutorial [closed]
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Since It's now 2012 and iOS6 is imminent - that's more likely to be the case.
– Abizern
Jul 24 '12 at 9:26
1
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What's the best practice using a settings file in Python? [closed]
I have a command line script that I run with a lot of arguments. I have now come to a point where I have too many arguments, and I want to have some arguments in dictionary form too.
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Share variables between files in Node.js?
...'/../config/environments/' + process.env.NODE_ENV + '.json') || {});
And now you can get the data like this:
// File: server.js
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var config = require('./config/config');
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mailer.setTransport(nodemailer.createTransport(config.mailerType, config.mailerConfig));
Scenario 2: Use a constants f...
How to print a percentage value in python?
...>>> 1 / 3
0.3333333333333333
# The above 33% example would could now be written without the explicit
# float conversion:
>>> print "{0:.0f}%".format(1/3 * 100)
33%
# Or even shorter using the format mini language:
>>> print "{:.0%}".format(1/3)
33%
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What GUI libraries are the JetBrains using?
...ecause IntelliJ IDEA was created back in 2000 when JavaFX didn't exist and now it's not feasible rewriting millions of lines of code and redesigning thousands of dialogs and UI elements for the doubtable benefits?
– CrazyCoder
Jul 3 '17 at 8:18
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How to trim a string in SQL Server before 2017?
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SQL Server now has TRIM in the 2017 version. docs.microsoft.com/en-us/sql/t-sql/functions/trim-transact-sql
– goodeye
Jun 15 '17 at 19:23
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Update MongoDB field using value of another field
...requests);
}
MongoDB 2.6 and 3.0
From this version you need to use the now deprecated Bulk API and its associated methods.
var bulk = db.collection.initializeUnorderedBulkOp();
var count = 0;
cursor.snapshot().forEach(function(document) {
bulk.find({ '_id': document._id }).updateOne( {
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Functional style of Java 8's Optional.ifPresent and if-not-Present?
...implementing consumer for better usage with other components.
by the way now its name is more descriptive it is actually Consumer>
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