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Create a .txt file if doesn't exist, and if it does append a new line

... come i wont see that before? Damn... I felt like a total dumb thanks. I really preciate these kinda good answers. – Berker Yüceer Mar 28 '12 at 13:07 7 ...
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What is aria-label and how should I use it?

...log.close()">X</button>` Most people would be able to infer visually that this button will close the dialog. A blind person using assistive technology might just hear "X" read aloud, which doesn't mean much without the visual clues. aria-label explicitly tells them what the button will do...
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Copy files without overwrite

I just can't seem to find a way on the command line to say "copy all the files from directory A to directory B, but if the file already exists in directory B, don't overwrite it, no matter which file is newer, and don't prompt me." ...
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What to return if Spring MVC controller method doesn't return value?

I am using jQuery's $.getJSON() to make asynchronous calls to my simple Spring MVC backend. Most of the Spring controller methods look like this: ...
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Best way to convert strings to symbols in hash

What's the (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby? 31 Answers...
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LINQ: Select an object and change some properties without creating a new object

...erties of a LINQ query result object without creating a new object and manually setting every property. Is this possible? ...
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What is an API key? [closed]

... further verify the origin and to prevent tampering with the values. Typically, if you can identify the source of a request positively, it acts as a form of authentication, which can lead to access control. For example, you can restrict access to certain API actions based on who's performing the re...
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jQuery: Check if div with certain class name exists

Using jQuery I'm programmatically generating a bunch of div 's like this: 18 Answers ...
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Is there a difference between “==” and “is”?

... a True In your case, the second test only works because Python caches small integer objects, which is an implementation detail. For larger integers, this does not work: >>> 1000 is 10**3 False >>> 1000 == 10**3 True The same holds true for string literals: >>> "a" i...
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Example of multipart/form-data

...6 is two hyphens shorter then the actual boundaries in the data. This is really, really hard to see with all the hyphens strung together. – Fake Name Jun 2 '17 at 6:39 ...