Tips 관련

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One-liner

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Number

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Performance

console.time()

// Our test function runs a big for-loop
function test() {
    let number = 0;
    for (let i=0; i<999999; i++) 
      number += 5;
}


console.time("Test function");     // Start measuring time
test();                            // Call our test function
console.timeEnd("Test function");  // stop measuring time

/*
 default: 1.205810546875ms
 (value may vary depnding on browser, etc.)
 */

performance.now()

let start = performance.now();     // Timestamp before execution
test();                            // Call our test function
let end  = performance.now();      // Timestamp after execution
// Calculate the time taken (in ms)
let ms = end - start;
console.log(ms);
/*
 default: 1.205810546875ms
 */