A quick and easy way to measure the performance of your method in JavaScript and TypeScript.

Photo by  Dawid Małecki on  Unsplash

Performance Measurement in JavaScript

Measuring the performance of a certain method in JavaScript or any other language is actually pretty simple and generally can be split up into 4 parts.

• Get the current time = Start time
• Run the method code
• Get the current time = End time
• Subtract the end time from the start time = Run duration of your method

So what you would do in your JavaScript is shown in the next snippet:

const myMethod = () => {
    const startTimeInMs = new Date().getTime();

    // Do some heavy computation
    // ..........
    // ////////////////////////////////////////

    const endTimeInMs = new Date().getTime();
    const durationInMs = endTimeInMs - startTimeInMs;

    console.log(`myMethod took ${durationInMs} ms`);
};

#programming #typescript #javascript