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Remove insignificant trailing zeros from a number?
...ttyFloat(1234.5678, 2, true) // "1,234.57" (en-us)
Updated - August, 2018
All modern browsers now support the ECMAScript Internationalization API, which provides language sensitive string comparison, number formatting, and date and time formatting.
let formatters = {
default: new Int...
What's the difference between unit tests and integration tests? [duplicate]
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I would add that currently (in mid-2018 as I write this) integration tests are far cheaper to perform than they once were. This is largely due to the continued movement towards containerization. If you need a database, redis, SFTP, etc., they are literally a "...
How do I get the coordinates of a mouse click on a canvas element?
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Edit 2018: This answer is pretty old and it uses checks for old browsers that are not necessary anymore, as the clientX and clientY properties work in all current browsers. You might want to check out Patriques Answer for a simple...
Android TextView Justify Text
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I do not believe Android supports full justification.
UPDATE 2018-01-01: Android 8.0+ supports justification modes with TextView.
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How to check an Android device is HDPI screen or MDPI screen?
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As of 2018, you can use the below method -
public static String getDeviceDensityString(Context context) {
switch (context.getResources().getDisplayMetrics().densityDpi) {
case DisplayMetrics.DENSITY_LOW:
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How to determine if Javascript array contains an object with an attribute that equals a given value?
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2018 edit: This answer is from 2011, before browsers had widely supported array filtering methods and arrow functions. Have a look at CAFxX's answer.
There is no "magic" way to check for something in an array without a loop....
Sharing link on WhatsApp from mobile website (not application) for Android
...er&text=urlencodedtext"></a>
UPDATE-- Use this from now(Nov-2018)
<a href="https://wa.me/whatsappphonenumber/?text=urlencodedtext"></a>
Use: https://wa.me/15551234567
Don't use: https://wa.me/+001-(555)1234567
To create your own link with a pre-filled mes...
How to check if element is visible after scrolling?
...he element so it's hidden above the top of the scroll-able container.
EDIT 2018-10-08: Updated to handle when scrolled out of view above the screen.
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How to initialize a struct in accordance with C programming language standards
...9 Initialization. It also retains paragraph 9 unchanged.
New ISO/IEC 9899:2018 standard (commonly known as C18) which had superseded ISO/IEC 9899:2011 retains designated initializers under section 6.7.9 Initialization. It also retains paragraph 9 unchanged.
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How to get the IP address of the server on which my C# application is running on?
...ddress that matches all of these filters.
EDIT:
[revised code on May 16, 2018 to include the conditions mentioned in the text above for duplicate address detection state and preferred lifetime]
The sample below demonstrates filtering based on operational status, address family, excluding the loop...