pylnata
/ RecipeItem.js
Last active
April 3, 2023 02:59
Jest+Enzyme example unit test with SHALLOW for React component using useEffect and (useDispatch, useSelector) hooks
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| import React from "react"; | |
| export const Recipeitem = (props) => { | |
| return (<div> | |
| {props.title} | |
| </div>) | |
| } |
pylnata
/ preload.js
Last active
September 26, 2019 04:51
import and preloading a bunch og images in react app
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| /* Page.js */ | |
| import React, { useEffect, useState } from "react"; | |
| const Page = props => { | |
| const [images, setImages] = useState({}); | |
| const [imagesReadyCnt, setImagesReadyCnt] = useState(0); // counter of preloaded images | |
| useEffect(() => { | |
| const importedImages = {}; |