const start = performance.now(); // Run your code here const end = performance.now(); console.log(`Execution time: ${end - start} ms`); Use code with caution. Copied to clipboard
: Speed = (Size in Bits / Time in Seconds) . You can then convert this to Mbps. javascript detect speed
: This returns a high-resolution timestamp in milliseconds, accurate to five-thousandths of a millisecond. javascript const start = performance
: Choose a hosted image or file with a known size (e.g., a 5MB image). const start = performance.now()