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How can I check a C# variable is an empty string “” or null? [duplicate]
I am looking for the simplest way to do a check. I have a variable that can be equal to "" or null. Is there just one function that can check if it's not "" or null?
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Git and Mercurial - Compare and Contrast
For a while now I've been using subversion for my personal projects.
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Check synchronously if file/directory exists in Node.js
How can I synchronously check, using node.js , if a file or directory exists?
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Is it possible to set a number to NaN or infinity?
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That will teach me not to jump in with a quip before reading the question over a second time!! Sorry! That said, it wouldn't hurt to say so all the same because it's an easy trap to fall into, NaN != NaN
– David Heffernan
Mar 25 '11 a...
Open link in new tab or window [duplicate]
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You should add the target="_blank" and rel="noopener noreferrer" in the anchor tag.
For example:
<a target="_blank" rel="noopener noreferrer" href="http://your_url_here.html">Link</a>
Adding rel="noopener noreferrer" is not mandatory, but it's a recommended secur...
How to check if the string is empty?
... should use myString == "". See the documentation on Truth Value Testing for other values that are false in Boolean contexts.
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Given an RGB value, how do I create a tint (or shade)?
... do I create tints (make it lighter) and shades (make it darker) of the color?
3 Answers
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How can I access and process nested objects, arrays or JSON?
...ted data structure containing objects and arrays. How can I extract the information, i.e. access a specific or multiple values (or keys)?
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How to recover stashed uncommitted changes
...hed them using git stash , but there were some changes which were very important among those stashed ones. Is there any way to get back those changes?
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CSS content generation before or after 'input' elements [duplicate]
In Firefox 3 and Google Chrome 8.0 the following works as expected:
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