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Javascript 2021-09-15 12:18:03
js qr code scanner
var videoSelect = document.querySelector('select#videoSource'); navigator.mediaDevices.enumerateDevices() .then(gotDevices).then(getStream).catch(handleError); videoSelect.onchange = getStream; function gotDevices(deviceInfos) { for (var i = device... Add solution -
Javascript 2021-09-15 10:53:03
how to add debounce in react redux js
function SearchInput() { const [realTimeValue, setRealTimeValue] = useState(''); const debouncedValue = useDebouncedValue(realTimeValue, 500); // this value will pick real time value, but will change it's result only when it's seattled for 500ms u... Add solution -
Javascript 2021-09-15 09:52:03
<SearchBar onChange={() => console.log('onChange')} onRequestSearch={() => console.log('onRequestSearch')} style={{ margin: '0 auto', maxWidth: 800 }} />
<SearchBar onChange={() => console.log('onChange')} onRequestSearch={() => console.log('onRequestSearch')} style={{ margin: '0 auto', ... Add solution -
Javascript 2021-09-15 00:57:04
javascript get main color from image
const canvas = document.getElementById("canvas"), preview = document.getElementById("preview"), ctx = canvas.getContext("2d"); canvas.width = 1; canvas.height = 1; preview.width = 400; preview.height = 400; function ge... Add solution -
Javascript 2021-09-14 12:51:03
cascading dropdown for forms react
import React from 'react'; class Dropdown extends React.Component { constructor(props) { super(props); this.state = { countries : [], states : [], cities : [], selectedCountry : '--Choose Country--', selectedState : '--Choose State--'... Add solution -
Javascript 2021-09-14 08:01:03
controlled components reactjs interview questions
function FormValidation(props) { let [inputValue, setInputValue] = useState(""); let updateInput = e => { setInputValue(e.target.value); }; return ( <div> <form> <input type="text" value={input... Add solution -
Javascript 2021-09-13 08:11:06
assign values to a table from javascript in VF page
<apex:page standardController="Application__c" extensions="applicationformcontrol" id="pg1" sidebar="false"> <apex:form id="frm1"> <!—- To enable or disable the checkbox --> <ape... Add solution -
Html 2021-09-11 08:44:02
javascript change the number of range on change
<span id="valBox"></span> <input type="range" min="5" max="10" step="1" onchange="showVal(this.value)"> <script> const showVal = (newVal) => { document.getElementBy... Add solution
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