How to make a script enter a number in input?

Question

JavaScript

I'm writing a userscript to automatically fill in a dozen input fields with a number.
Usually such a question was solved through "document.querySelector('input').value = number", but not now. Visually, the text changes and value but the old value is sent (or as if I didn’t enter anything)

.

There is an input field:
input type="number" class="form-control input-number-no-arrows text-center" rv-currency-value="value"

Yes
let lomar = 45;

Task:
Implement the script so that the "lomar" number is automatically placed in the input.

Answer 1

After the input, the appropriate events need to be fired so that the scripts on the page can understand that the value has changed. Try like this:

document.querySelector('input').value = 'значение';
document.querySelector('input').dispatchEvent(new Event('keyup'));
document.querySelector('input').dispatchEvent(new Event('input'));
document.querySelector('input').dispatchEvent(new Event('change'));

If it doesn't help, look in the console for which handlers hang on the desired field and manually call them after changing the value.