matthewdavi

function forEachWithReturn(array, cb){
  try{
    array.forEach(cb)
  }
  catch(e){
    return e;
  }
}

const three = forEachWithReturn([1,2,3,4,5], (num) => {

matthewdavi

{
  "sublimeTextKeymap.promptV3Features": true,
  "editor.multiCursorModifier": "ctrlCmd",
  "editor.snippetSuggestions": "top",
  "editor.formatOnPaste": true,
  "workbench.colorTheme": "Material Theme",
  "editor.fontSize": 14,
  "terminal.integrated.shell.osx": "/bin/zsh",
  "terminal.external.osxExec": "Hyper.app",
  "eslint.packageManager": "yarn",

matthewdavi

/* I've been thinking about default params a bit. And how you can use earlier params as values in the default params. 
It's a nice way to write functions without introducing any variable declaration statements in the body */ 

const greaterThan = num1 => num2 => num1 < num2;
const not = fn => (...args) => !fn(...args);
const quickSort = (
  nums,
  pivot = nums[Math.floor(Math.random() * nums.length)],
  left = nums.filter(not(greaterThan(pivot))),
  right = nums.filter(greaterThan(pivot)),

matthewdavi

/* I haven't seen anyone write about this, but I thought about it this morning in the shower and it works, why wouldn't it? 
JSX is just sugar for function calls (React.createElement). */

const Fib: React.FC<{
  start?: number;
  end: number;
  previous?: number[];
}> = ({ end, start = 2, previous = [1, 1] }) => {
  const memo = previous.concat(
    previous[previous.length - 1] + previous[previous.length - 2]