Oaphi

\documentclass[tikz]{standalone}   % last update March 2016
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\title{Moderator chart}
\begin{document}
\definecolor{rows}{rgb}{0.95,0.95,0.95}
\definecolor{myblue}{rgb}{0.1,0.3,0.9}
\definecolor{mypurple}{rgb}{0.5,0.3,0.7}
\begin{tikzpicture}[scale=0.5]
    % 1 horizontal unit = 1 month, 0 = january 2010

Oaphi

const interleave = <T, U>(arr: T[], inserted: U) => {
    let insertions = 0;
    return arr.flatMap((val, idx) => {
        const isEven = (idx + insertions) % 2;

        if(isEven) insertions += 1;

        return isEven ? [inserted, val] : val;
    });
}

Oaphi

import GulpClient = require("gulp");
import del from "del";
import { dest, series, src, watch } from "gulp";
import { appendText, prependText } from "gulp-append-prepend";
import rename from "gulp-rename";
import ts from "gulp-typescript";

const DIST = "dist";
const SOURCE = "src/*.ts";

Oaphi

type DeepKeyof<T, A = never> = { [P in keyof T]: T[P] extends object ? P extends A ? P : DeepKeyof<T[P], A | keyof T> | P : P }[keyof T];

type DeepOmit<T, U extends DeepKeyof<T>> = {
    [P in keyof T as P extends U ? never : P]: T[P] extends object ?
    keyof DeepOmit<T[P], Extract<U, DeepKeyof<T[P]>>> extends never ?
    {} :
    DeepOmit<T[P], Extract<U, DeepKeyof<T[P]>>> :
    T[P]
};

Oaphi

type PrintStringUnion<T extends string, S extends string = "|", A extends string = ""> = {
    [P in T]: [T] extends [P] ? `${A}${P}` : PrintStringUnion<Exclude<T, P>, S, `${A}${P}${S}`>
}[T];

type TestUnion = "A" | "B" | "C" | "D" | "E";

type U = PrintStringUnion<TestUnion>;

const test1: U = "A|B|C|D|E"; // OK

Oaphi

type NestedObj = {
    [x: string]: string | number | boolean | null | undefined | NestedObj;
};

const lens = (obj: NestedObj, path: string) => {
    const parts = path.split(".");
    const [lastPart] = parts.slice(-1);

    let current: NestedObj = obj;
    for (const part of parts) {

Oaphi

# extracts NPM environment variable names
npm_val() {
    local value=$(ENV | grep -e "npm_package_$1" | cut -d "=" -f 2)
    echo $value
}

# splits a string on dashes and rejoins with first letter uppercased
pretty() {
    IFS=\-
    local output

Oaphi

type Digit = "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" | "0";

type EveryOfType<A extends readonly any[], T> = keyof {
  [P in Exclude<keyof A, keyof any[]> as A[P] extends T ? never : P]: P;
} extends never
  ? true
  : false;

type SplitString<
  T extends string,

Oaphi

# if gulp CLI is not installed
npm i -g gulp-cli

# gulp package
npm i -D gulp @types/gulp

# TypeScript prerequisites
# ts-node is required for gulpfile.ts
npm i -D typescript ts-node

Oaphi

type Invert<T> = { [ P in keyof T as Extract<T[P], string | number | symbol> ] : P };
  
type test1 = Invert<{ a: "ia", b: "ib", c: 1 }>; //{ ia: "a"; ib: "b"; 1: "c"; }

type DeepPath<T extends string[], U> = T extends [infer F, ...infer L]
  ? F extends string
    ? { [P in F]: L extends string[] ? DeepPath<L,U> : never }
    : {}
  : U;