The console.time() method in HTML is used to start 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 a single parameter label which is optional and used to specify the label of the timer.
Example 1: Below programs illustrate the console.time() method in HTML.
<!DOCTYPE html>
<html>
<head>
<title>DOM console.time() Method in HTML</title>
<style>
h1 {
color: green;
}
</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:
Example 2: Calculate the time taken by a while loop using console.time() method
<!DOCTYPE html>
<html>
<head>
<title>DOM console.time() Method in HTML</title>
<style>
h1 {
color: green;
}
</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:
Supported Browsers: The browser is supported by the console.time() Methods are listed below: