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What is “assert” in JavaScript?

... There is no assert in JavaScript (yet; there's talk of adding one, but it's at an early stage). Perhaps you're using some library that provides one. The usual meaning is to throw an error if the expression passed into the function is false; this is part of the general concept of assertion checki...
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What is the difference between String.slice and String.substring?

... slice() works like substring() with a few different behaviors. Syntax: string.slice(start, stop); Syntax: string.substring(start, stop); What they have in common: If start equals stop: returns an empty string If stop is omitted: extracts characters to ...
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How to generate a random string of a fixed length in Go?

...ddress the fastest part too. We'll arrive at our final, fastest code in an iterative manner. Benchmarking each iteration can be found at the end of the answer. All the solutions and the benchmarking code can be found on the Go Playground. The code on the Playground is a test file, not an executable...
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Python: split a list based on a condition?

...the best way, both aesthetically and from a performance perspective, to split a list of items into multiple lists based on a conditional? The equivalent of: ...
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Why is using a wild card with a Java import statement bad?

It is much more convenient and cleaner to use a single statement like 15 Answers 15 ...
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Why do you need to put #!/bin/bash at the beginning of a script file?

I have made Bash scripts before and they all ran fine without #!/bin/bash at the beginning. 9 Answers ...
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How to install PyQt4 on Windows using pip?

I'm using Python 3.4 on Windows. When I run a script, it complains 13 Answers 13 ...
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Where am I wrong about my project and these Javascript Frameworks?

...ge web app. I plan on having a set of features available from the get-go with plenty of feature additions down the road. 7...
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Best way to store JSON in an HTML attribute?

...d be any size (i.e. huge). I've not seen any documentation on browser limits to attribute sizes. If you do run into them, then store the data in a <script>. Define an object and map element ids to property names in that object. What if the JSON contains special characters? (e.g. {test: ...
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isset() and empty() - what to use

... It depends what you are looking for, if you are just looking to see if it is empty just use empty as it checks whether it is set as well, if you want to know whether something is set or not use isset. Empty checks if the var...