Solu

``` function getIndex(arr) { let index = -1; let min = Number.MAX_SAFE_INTEGER; for (const i in arr) { if (arr[i] < min && arr[i] > 0) { min = arr[i];...

``` function mySetinterval(fn, delay = 300) { let timer = function () { setTimeout(() => { fn() timer() }, delay) } timer() return function stop() { timer = () =>...

> > ```js > > // 简单实现hooks > > > > // 一、实现useState > > const { render } = require("react-dom"); > > let memoriedStates = []; > > let...