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Loop through an array in JavaScript

... //Do something } Pros Works on every environment You can use break and continue flow control statements Cons Too verbose Imperative Easy to have off-by-one errors (sometimes also called a fence post error) 2. Array.prototype.forEach The ES5 specification introduced a lot of beneficial arr...
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Pretty-print an entire Pandas Series / DataFrame

I work with Series and DataFrames on the terminal a lot. The default __repr__ for a Series returns a reduced sample, with some head and tail values, but the rest missing. ...
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Check synchronously if file/directory exists in Node.js

...version of lstat, etc. lstatSync tells you both whether something exists, and if so, whether it's a file or a directory (or in some file systems, a symbolic link, block device, character device, etc.), e.g. if you need to know if it exists and is a directory: var fs = require('fs'); try { // Q...
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LINQ Aggregate algorithm explained

... The easiest-to-understand definition of Aggregate is that it performs an operation on each element of the list taking into account the operations that have gone before. That is to say it performs the action on the first and second element and carr...
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sed whole word search and replace

How do I search and replace whole words using sed? 6 Answers 6 ...
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read.csv warning 'EOF within quoted string' prevents complete reading of file

...112,544 rows. When I read it into R with read.csv I only get 56,952 rows and this warning: 8 Answers ...
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Is embedding background image data into CSS as Base64 good or bad practice?

I was looking at the source of a greasemonkey userscript and noticed the following in their css: 12 Answers ...
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How can I open the interactive matplotlib window in IPython notebook?

I am using IPython with --pylab=inline and would sometimes like to quickly switch to the interactive, zoomable matplotlib GUI for viewing plots (the one that pops up when you plot something in a terminal Python console). How could I do that? Preferably without leaving or restarting my notebook. ...
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Table name as variable

... For static queries, like the one in your question, table names and column names need to be static. For dynamic queries you should generate the full SQL dynamically, and use sp_executesql to execute it. Here is an example of a script used to compare data between the same tables of diff...
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Missing styles. Is the correct theme chosen for this layout?

... For Android Studio (or IntelliJ IDEA), If everything looks OK in your project and you're still receiving the error in your layouts, try to 'Invalidate caches & restart'. Enjoy a coffee while Android Studio is recreating ca...