HTML | DOM console.time() Method
The console.time() method in HTML is used to starting a timer in the console view. The console.time() method can be used for calculating the time of programs for various testing purposes. The label is sent as a parameter to the console.time() method.
Syntax:
console.time( label )
Parameters: This method accepts single parameter label which is optional and used to specify the label of the timer.
Below programs illustrate the console.time() method in HTML:
Example 1:
html
<!DOCTYPE html><html><head> <title>DOM console.time() Method in HTML</title> <style> h1 { color: green; } h2 { font-family: Impact; } body { text-align: center; } </style></head><body> <h1>GeeksforGeeks</h1> <h2>DOM console.time() Method</h2> <p> To view the message in the console press the F12 key on your keyboard. </p> <p> To view the time taken by a for loop to run 100 times, double click the button below: </p> <br> <button ondblclick="table_time()"> RUN TIMER </button> <script> function table_time() { console.time(); for (i = 0; i < 100; i++) { // Random code } console.timeEnd(); } </script></body></html> |
Output:
Console View:
Example 2: Calculate the time taken by a while loop using console.time() method
html
<!DOCTYPE html><html><head> <title>DOM console.time() Method in HTML</title> <style> h1 { color: green; } h2 { font-family: Impact; } body { text-align: center; } </style></head><body> <h1>GeeksforGeeks</h1> <h2>DOM console.time() Method</h2> <p> To view the message in the console press the F12 key on your keyboard. </p> <p> To view the time taken by a for loop to run 100 times, double click the button below: </p> <br> <button ondblclick="table_time()"> RUN TIMER </button> <script> function table_time() { i = 0; console.time ("While loop for 100 iterations"); while (i < 100) { i++; } console.timeEnd ("While loop for 100 iterations"); } </script></body></html> |
Output:
Console View:
Supported Browsers: The browser supported by console.time() Method are listed below:
- Google Chrome 1.0
- Edge 12.0
- Internet Explorer 11.0
- Firefox 10.0
- Opera 11.0
- Safari 4.0
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