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Swapping two variable value without using third variable
One of the very tricky questions asked in an interview.
27 Answers
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Android Paint: .measureText() vs .getTextBounds()
I'm measuring text using Paint.getTextBounds() , since I'm interested in getting both the height and width of the text to be rendered. However, the actual text rendered is always a bit wider than the .width() of the Rect information filled by getTextBounds() .
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Is a Python dictionary an example of a hash table?
One of the basic data structures in Python is the dictionary, which allows one to record "keys" for looking up "values" of any type. Is this implemented internally as a hash table? If not, what is it?
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JavaScript moving element in the DOM
Let's say I have three <div> elements on a page. How can I swap positions of the first and third <div> ? jQuery is fine.
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Can a for loop increment/decrement by more than one?
Are there other ways to increment a for loop in Javascript besides i++ and ++i ? For example, I want to increment by 3 instead of one.
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How to Get Element By Class in JavaScript?
I want to replace the contents within a html element so I'm using the following function for that:
11 Answers
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Detect Windows version in .net
How can I detect the Windows OS versions in .net?
15 Answers
15
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omp parallel vs. omp parallel for
What is the difference between these two?
6 Answers
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
In my Rails (3.2) app, I have a bunch of tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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How to create a loop in bash that is waiting for a webserver to respond?
How to create a loop in bash that is waiting for a webserver to respond?
6 Answers
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