regex for numbers and decimals only
const source = document.getElementById('source');
source.addEventListener('input', allowOnlyNumberAndDecimals);
function allowOnlyNumberAndDecimals(e) {
let str = e.target.value
const regExp = /^(d+(.d+)?)$/
let status = regExp.test(str) ? 'valid' : 'invalid'
console.log(status + ' : ' + source.value)
}regex only digits
console.log(`12331: ${/^d+$/.test('12331')}`) // true
console.log(`abc: ${/^d+$/.test('abc')}`) // falseCopyright © 2021 Codeinu
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