Alia5

export type Await<T> = T extends PromiseLike<infer U> ? Await<U> : T;
export type IsPromise<T> = PromiseLike<infer U> ? true : false;

export type Length<T> = T extends { length: infer L } ? L : never;

export type KeysOfType<O, T> = {
    [K in keyof O]: O[K] extends T ? K : never;
}[keyof O];

// ConvertLiterals would convert literal types like `1337` to their base type like `number` if set to true 

timvisee

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

joepie91

Not all random values are created equal - for security-related code, you need a specific kind of random value.

A summary of this article, if you don't want to read the entire thing:

• Don't use Math.random(). There are extremely few cases where Math.random() is the right answer. Don't use it, unless you've read this entire article, and determined that it's necessary for your case.
• Don't use crypto.getRandomBytes directly. While it's a CSPRNG, it's easy to bias the result when 'transforming' it, such that the output becomes more predictable.
• If you want to generate random tokens or API keys: Use uuid, specifically the uuid.v4() method. Avoid node-uuid - it's not the same package, and doesn't produce reliably secure random values.
• If you want to generate random numbers in a range: Use random-number-csprng.

You should seriously consider reading the entire article, though - it's

junegunn

# GIT heart FZF
# -------------

is_in_git_repo() {
  git rev-parse HEAD > /dev/null 2>&1
}

fzf-down() {
  fzf --height 50% --min-height 20 --border --bind ctrl-/:toggle-preview "$@"
}

brennanMKE

import * as mongoose from 'mongoose';

export let Schema = mongoose.Schema;
export let ObjectId = mongoose.Schema.Types.ObjectId;
export let Mixed = mongoose.Schema.Types.Mixed;

export interface IHeroModel extends mongoose.Document {
  name: string;
  power: string;

ae6rt

var app = angular.module('app', []);

app.controller('controller', function ($scope, websocketService) {
    $scope.msg = "...";

    websocketService.start("ws://localhost:8080/events", function (evt) {
        var obj = JSON.parse(evt.data);
        $scope.$apply(function () {
            $scope.msg = obj.message
        });

codecat

#!/bin/bash

# Ubuntu Keyboard settings shortcut:
#  xfce4-screenshooter -r -o "sh /location/to/imgur-uploader.sh"

API_KEY=YOUR_API_KEY_GOES_HERE
URL=http://api.imgur.com/2/upload

RESPONSE=$(curl -s -F "key=$API_KEY" -F "image=@$1" $URL)
echo "$RESPONSE" | grep -o -E "<original>.*</original>" | grep -o -E "http://.*\.png" | xsel -i -b