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How does Git handle symbolic links?
...p to the user to either remove or change the link to point to something valid if needed.
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What exactly do “IB” and “UB” mean?
...ns fly out of your nose.
Using undefined behaviour is nearly always a bad idea. Even if it seems to work sometimes, any change to environment, compiler or platform can randomly break your code.
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Undo a merge by pull request?
...st with the ability to unrevert later.
To do so, you will need to take the ID of the merge commit.
In the above example the merge commit is the top one where it says "Merged pull request #123...".
Do this to revert the both changes ("Add bar" and "Add foo") and you will end up with in one commit r...
Handle file download from ajax post
...wnload it? I've read a number of similar threads here but none of them provide the answer I'm looking for.
20 Answers
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Including JavaScript class definition from another file in Node.js
...= User
exports.ROLE_ADMIN = 'admin'
exports.ROLE_USER = 'user'
export.isValidUser = function isValidUser() {
// ...
}
server.js
const {User, ROLE_ADMIN, ROLE_USER, isValidUser} = require('./user.js')
// Instantiate User:
let user = new User()
ES Modules
Since Node.js version 14 it's possible ...
Why should we include ttf, eot, woff, svg,… in a font-face
...If you don't want to support IE 8 and lower, and iOS 4 and lower, and android 4.3 or earlier, then you can just use WOFF (and WOFF2, a more highly compressed WOFF, for the newest browsers that support it.)
@font-face {
font-family: 'MyWebFont';
src: url('myfont.woff2') format('woff2'),
...
What data is stored in Ephemeral Storage of Amazon EC2 instance?
...red depends on what type of AMI you chose to create. The below answer by @nidalpres is more complete. If you chose to create an AMI backed by EBS, then your root directory is NOT stored in ephemeral storage.
– mattgmg1990
Oct 9 '13 at 21:57
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Where does the “flatmap that s***” idiomatic expression in Scala come from?
...h function might return null. When you actually use null you code will be riddled with null checks. But if you use Options instead of values, you can just flatmap the values with the desired functions, chaining the functions in the case of multiple functions and get a collection with just the result...
What's the difference between Sender, From and Return-Path?
...erent from the actual data of the message.
The Sender header is used to identify in the message who submitted it. This is usually the same as the From header, which is who the message is from. However, it can differ in some cases where a mail agent is sending messages on behalf of someone else....
Should logger be private static or not
...r se be expensive, but it adds a significant overhead. If you'd like to avoid this, you'd like to use the static form instead. But its disadvantage is in turn that you have to declare it in every individual class and take care in every class that the right classname is been used during logger's cons...