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How to compare strings in Bash

...valid'" fi If you want to do something when they don't match, replace = with !=. You can read more about string operations and arithmetic operations in their respective documentation. Why do we use quotes around $x? You want the quotes around $x, because if it is empty, your Bash script encounte...
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What is compiler, linker, loader?

...nted to know in depth meaning and working of compiler, linker and loader. With reference to any language preferably c++. 14...
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HTML tag affecting line height, how to make it consistent?

If I have a <sup> tag in a multi-line <p> tag, the line with the superscript on it has a larger line spacing above it than the other lines, irregardless of what line-height I put on the <p> . ...
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Java Reflection Performance

... Yes - absolutely. Looking up a class via reflection is, by magnitude, more expensive. Quoting Java's documentation on reflection: Because reflection involves types that are dynamically resolved, certain Java virtual machine optimizations can not be performed. Consequently, reflectiv...
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What is LINQ and what does it do? [closed]

What is LINQ? I know it's for databases, but what does it do? 7 Answers 7 ...
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Changing the interval of SetInterval while it's running

I have written a javascript function that uses setInterval to manipulate a string every tenth of a second for a certain number of iterations. ...
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What's the fastest way to read a text file line-by-line?

I want to read a text file line by line. I wanted to know if I'm doing it as efficiently as possible within the .NET C# scope of things. ...
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Can I use non existing CSS classes?

...ct exist on those specific elements, and your markup is perfectly valid as it is. This doesn't necessarily mean that you need to have a class declared in the HTML before you can use it in CSS either. See ruakh's comment. Whether or not a selector is valid depends entirely on the selector syntax, an...
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How can I check if a checkbox is checked?

I am building a mobile web app with jQuery Mobile and I want to check if a checkbox is checked. Here is my code. 14 Answers...
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Interface naming in Java [closed]

Most OO languages prefix their interface names with a capital I, why does Java not do this? What was the rationale for not following this convention? ...