const packed_smi_elements = new Array(921600).fill(1);
const packed_elements = new Array(921600).fill(true);
const uint8_elements = new Uint8Array(921600).fill(1);
let sum = 0;
for(let i = 0; i < packed_smi_elements.length; ++i) {
if (packed_smi_elements[i]) ++sum;
}let sum = 0;
for(let i = 0; i < packed_elements.length; ++i) {
if (packed_elements[i]) ++sum;
}let sum = 0;
for(let i = 0; i < uint8_elements.length; ++i) {
if (uint8_elements[i]) ++sum;
}