How to target only the number of this with javascript

<span class="woocommerce-Price-amount amount">
  <bdi>
   <span class="woocommerce-Price-currencySymbol">RM</span>
   "678"
  </bdi>
</span>

How can i target only the number of this bdi without the currency simble with Javascript?

>Solution :

Update a child node’s textContent. Depending on the currency, the index will be either 1 or 2. In your case it’s 2, because the currency symbol is before the amount.

example:

document.querySelector(".woocommerce-Price-amount bdi").childNodes[2].textContent = '1000';

The index 0 is skipped because it is a node with a newline character (thanks @derprischer).