Console

`console.timeEnd`

Stops a timer that was previously started by calling console.time() and logs the elapsed time

Syntax

JavaScript

console.timeEnd(label?)

Parameters

Parameter	Type	Description
label	string	Label of the timer to stop. Defaults to 'default'

Return Value

undefined

Examples

Basic Usage

console.time('operation');
// ... some operation ...
console.timeEnd('operation'); // operation: 42.5ms

Practical Example

console.time('db-query');
const results = await db.query('SELECT * FROM users');
console.timeEnd('db-query');

Advanced Usage

console.time();
for (let i = 0; i < 1000; i++) Math.random();
console.timeEnd(); // default: 0.5ms

Understanding console.timeEnd

The console.timeEnd method in JavaScript stops a timer that was previously started by calling console.time() and logs the elapsed time. It belongs to the console object and is one of the most widely used methods for working with console values in modern JavaScript and TypeScript applications.

The method signature is console.timeEnd(label?). It accepts 1 parameter: label. When called, it returns undefined. Understanding when and how to use timeEnd() helps you write more expressive, readable code.

Common use cases for console.timeEnd include data transformation, input validation, API response processing, and building reusable utility functions. It works well alongside related methods like console-time, console-log, enabling you to chain operations together for complex data manipulation pipelines.

Browser support for console.timeEnd is excellent across all modern browsers including Chrome, Firefox, Safari, and Edge. It is also fully supported in Node.js and Deno. For older environments, transpilation with Babel or a polyfill may be needed.