npm install -g typescript
tsc --init # creates a tsconfig.json file
tsc # transpile every file in the current directory
tsc index.ts # transpile a specific file
tsc --watch # transpile on change in current directory (watch changes)Try this one:
https://www.typescriptlang.org/play/1234567891011121314
const message:string = "hello world!";console.log(message);var alist = ["a","b"];var blist = ["c","d"];var clist = [];alist.forEach(element =>{ blist.forEach(group => { var temp = element; console.log(temp); temp = temp + group; clist.push(temp) });});console.log(clist);