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How to turn on/off ReactJS 'development mode'?

... config like so: new webpack.DefinePlugin({ "process.env.NODE_ENV": JSON.stringify("production") }) Browserify Use the Envify transform and run your browserify build step with NODE_ENV=production ("set NODE_ENV=production" on Windows) Result This will produce output bundles that has all instances...
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(Built-in) way in JavaScript to check if a string is a valid number

... To check if a variable (including a string) is a number, check if it is not a number: This works regardless of whether the variable content is a string or number. isNaN(num) // returns true if the variable does NOT contain a valid number Examples i...
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Is there a RegExp.escape function in Javascript?

I just want to create a regular expression out of any possible string. 15 Answers 15 ...
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CSS text-decoration underline color [duplicate]

...nes follow only the text and if you want toc achieve this you must use the extra span approach. – davidelrizzo Oct 19 '14 at 11:08  |  show 5 ...
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How can I convert byte size into a human-readable format in Java?

...o human readable format | Programming.Guide SI (1 k = 1,000) public static String humanReadableByteCountSI(long bytes) { if (-1000 < bytes && bytes < 1000) { return bytes + " B"; } CharacterIterator ci = new StringCharacterIterator("kMGTPE"); while (bytes <= ...
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PHP random string generator

I'm trying to create a randomized string in PHP, and I get absolutely no output with this: 59 Answers ...
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How do I append one string to another in Python?

I want an efficient way to append one string to another in Python, other than the following. 10 Answers ...
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“The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine” Error in importing

...owngraded the file to XLS and it worked for me without installing anything extra. – Mark Boltuc Nov 5 '14 at 13:44 8 ...
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What does int argc, char *argv[] mean?

...e arguments are passed to main() in C and C++. argc will be the number of strings pointed to by argv. This will (in practice) be 1 plus the number of arguments, as virtually all implementations will prepend the name of the program to the array. The variables are named argc (argument count) and ar...
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What is BSON and exactly how is it different from JSON?

...eturn the exact data type of the column field ? Or either it return it as String for all the types ? – mRhNs13 Aug 16 '18 at 9:25  |  show 1 ...