js_sys::Atomics

Function and

source 
pub fn and(
    typed_array: &JsValue,
    index: u32,
    value: i32,
) -> Result<i32, JsValue>
Expand description

The static Atomics.and() method computes a bitwise AND with a given value at a given position in the array, and returns the old value at that position. This atomic operation guarantees that no other write happens until the modified value is written back.

You should use and_bigint to operate on a BigInt64Array or a BigUint64Array.

MDN documentation