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How to tell if a string is not defined in a Bash shell script
If I want to check for the null string I would do
12 Answers
12
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Get the _id of inserted document in Mongo database in NodeJS
I use NodeJS to insert documents in MongoDB. Using collection.insert I can insert a document into database like in this code:
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How to format numbers? [duplicate]
I want to format numbers using JavaScript.
17 Answers
17
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How do you reverse a string in place in JavaScript?
How do you reverse a string in place (or in-place) in JavaScript when it is passed to a function with a return statement, without using built-in functions ( .reverse() , .charAt() etc.)?
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Are string.Equals() and == operator really same? [duplicate]
Are they really same? Today, I ran into this problem. Here is the dump from the Immediate Window:
8 Answers
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Hash function that produces short hashes?
Is there a way of encryption that can take a string of any length and produce a sub-10-character hash? I want to produce reasonably unique ID's but based on message contents, rather than randomly.
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How to install multiple python packages at once using pip
I know it's an easy way of doing it but i didn't find it neither here nor on google.
So i was curious if there is a way to install multiple packages using pip.
Something like:
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How do you run a command for each line of a file?
For example, right now I'm using the following to change a couple of files whose Unix paths I wrote to a file:
9 Answers
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iPhone Data Usage Tracking/Monitoring
I've searched over this topic but found very few details which were helpful. With these details I've tried to cook some code as follows.
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How many spaces will Java String.trim() remove?
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All of them.
Returns:
A copy of this string with leading and trailing white space removed, or this string if it has no leading or trailing white space.
~ Quoted from Java 1.5.0 docs
(But why didn't you just try it and see fo...