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If list index exists, do X

... that relative index from the end of the list... However, by definition, all items in a Python list between 0 and len(the_list)-1 exist (i.e., there is no need for a try, except if you know 0 <= index < len(the_list)). You can use enumerate if you want the indexes between 0 and the last el...
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Count cells that contain any text

...<>" (including the quotes) as the parameter for criteria. This basically says, as long as its not empty/blank, count it. I believe this is what you want. =COUNTIF(A1:A10, "<>") Otherwise you can use CountA as Scott suggests ...
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Rails: How to reference images in CSS within Rails 4

... don't have the proper name adjusted. Here's what I mean. I have a file called logo.png. Yet when it shows up on heroku it is viewed as: ...
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What are the dark corners of Vim your mom never told you about? [closed]

...en copy it back again. You obviously have to be on a system with sudo installed and have sudo rights. share | improve this answer | follow | ...
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Deep copying an NSArray

Is there any built-in function that allows me to deep copy an NSMutableArray ? 6 Answers ...
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check android application is in foreground or not? [duplicate]

I went through a lot of answers for this question.But it's all about single activity..How to check whether the whole app is running in foreground or not ? ...
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Display HTML snippets in HTML

...f escaping some characters: & as & < as < (Incidentally, there is no need to escape > but people often do it for reasons of symmetry.) And of course you should surround the resulting, escaped HTML code within <pre><code>…</code></pre> to (a) prese...
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How can I find out what FOREIGN KEY constraint references a table in SQL Server?

... This gives me a lot of info in the smallest number of lines of code – Rennish Joseph Jul 30 '15 at 19:21 ...
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How does JavaScript handle AJAX responses in the background?

...avaScript runs in a single thread, after an AJAX request is made, what actually happens in the background? I would like to get a deeper insight into this, can anyone shed some light? ...
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How to check if character is a letter in Javascript?

...ink: https://github.com/slevithan/xregexp) With it you can simply match all unicode letters with \p{L}. Read the header of this source file to see which categories it supports: http://xregexp.com/plugins/xregexp-unicode-categories.js ...