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Other 2021-10-13 17:24:05
select in flutter dart
import 'package:flutter/material.dart'; /// Usage: /// CustomDropdown<String>( // items: ['A', 'B', 'C'], // onChanged: (val) => _selectedValue = val, // center: true, // ), /// --> Remember: f.toString() at line 105 is @override... Add solution -
Javascript 2021-10-10 18:16:03
javascript trigger change event
There's a couple of ways you can do this. If the onchange listener is a function set via the element.onchange property and you're not bothered about the event object or bubbling/propagation, the easiest method is to just call that function: element.oncha... Add solution -
Javascript 2021-09-30 05:30:02
Simple form based react material ui
import React from 'react' import { Field, reduxForm } from 'redux-form' import TextField from '@material-ui/core/TextField' import Checkbox from '@material-ui/core/Checkbox' import FormControlLabel from '@material-ui/core/FormControlLabel' import FormCont... Add solution -
Javascript 2021-09-23 15:37:04
tip in js
document.querySelector('#tip-form').onchange = function(){ var bill = Number(document.getElementById('billTotal').value); var tip = document.getElementById('tipInput').value; document.getElementById('tipOutput').innerHTML = `${tip}%`; var tipValu... Add solution -
Javascript 2021-09-19 17:22:05
send multipart form data axios with node js
import React from 'react' import axios, { post } from 'axios'; class SimpleReactFileUpload extends React.Component { constructor(props) { super(props); this.state ={ file:null } this.onFormSubmit = this.onFormSubmit.bind(this) ... Add solution -
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 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