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What is JavaScript's highest integer value that a number can go to without losing precision?
...ntext refers to the ability to represent integers exactly and to correctly compare them.
From the spec:
Note that all the positive and negative integers whose magnitude is no
greater than 253 are representable in the Number type (indeed, the
integer 0 has two representations, +0 and -0).
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Truncate all tables in a MySQL database in one command?
Is there a query (command) to truncate all the tables in a database in one operation? I want to know if I can do this with one single query.
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Java Hashmap: How to get key from value?
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If you choose to use the Commons Collections library instead of the standard Java Collections API, you can achieve this with ease.
The BidiMap interface in the Collections library is a bi-directional map, allowing you to map a key to a value (like n...
You can't specify target table for update in FROM clause
...iride From a relational algebra point of view, T and (SELECT * FROM T) are completely equivalent. They are the same relation. Therefore this is an arbitrary, inane restriction. More specifically, it's a workaround to coerce MySQL into doing something that it clearly can do, but for some reason it ca...
Ways to synchronize interface and implementation comments in C# [closed]
Are there automatic ways to sync comments between an interface and its implementation?
I'm currently documenting them both and wouldn't like to manually keep them in sync.
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iPhone Debugging: How to resolve 'failed to get the task for process'?
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Node.js throws “btoa is not defined” error
...oa-atob' module does not export a programmatic interface, it only provides command line utilities.
If you need to convert to Base64 you could do so using Buffer:
console.log(Buffer.from('Hello World!').toString('base64'));
Reverse (assuming the content you're decoding is a utf8 string):
console...
Calculate distance between 2 GPS coordinates
... If anyone, specifically those of you who don't look for end of line comments, is staring at this formula and looking for a unit of distance, the unit is km. :)
– Dylan Knowles
Sep 27 '13 at 18:01
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Where can I set environment variables that crontab will use?
...ave 'cron' run a shell script that sets the environment before running the command.
Always.
# @(#)$Id: crontab,v 4.2 2007/09/17 02:41:00 jleffler Exp $
# Crontab file for Home Directory for Jonathan Leffler (JL)
#-----------------------------------------------------------------------------
#Mi...