Function quickjs_runtime::quickjs_utils::arrays::get_element_q

pub fn get_element_q(
    q_ctx: &QuickJsRealmAdapter,
    array_ref: &QuickJsValueAdapter,
    index: u32,
) -> Result<QuickJsValueAdapter, JsError>

Get a single element from an array

Example

use quickjs_runtime::builder::QuickJsRuntimeBuilder;
use quickjs_runtime::jsutils::Script;
use quickjs_runtime::quickjs_utils::{arrays, primitives};
use quickjs_runtime::quickjs_utils;

let rt = QuickJsRuntimeBuilder::new().build();
rt.exe_rt_task_in_event_loop(|q_js_rt| {
    let q_ctx = q_js_rt.get_main_realm();
    // get an Array from script
    let arr_ref = q_ctx.eval(Script::new("get_element_test.es", "([1, 2, 3]);")).ok().expect("script failed");
    // get a value, the 3 in this case
    let val_ref = arrays::get_element_q(q_ctx, &arr_ref, 2).ok().unwrap();
    let val_i32 = primitives::to_i32(&val_ref).ok().unwrap();
    // get the length
    assert_eq!(val_i32, 3);
});