How to extract a value from an element and, optionally, round it

Ciprian on Thursday, August 22, 2019 in JavaScript DOM, Methods, Events and Scopes
Last modified on Monday, May 16, 2022

This JavaScript snippet will extract a price from a DOM element, remove all alphanumeric characters, such as currency or symbols or other words, and return it.

The second snippet will also round the value.

let price,
    priceValue;

// Extract value
price = document.getElementById('price');
priceValue = parseInt(price.innerText.replace(/[^0-9.]/g, ''));

document.getElementById('result').innerHTML = priceValue;

// Extract value and round it
price = document.getElementById('price');
priceRounded = parseFloat(price.innerText.replace(/[^0-9.]/g, '')).toFixed(2);

document.getElementById('result-rounded').innerText = priceRounded;

See a fiddle here.

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