HTML | DOM console.time() Method

The console.time() method in HTML is used for 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 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:

<!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

<!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
Apple Safari 4.0
Firefox 10.0
Opera
Internet Explorer 11.0

HTML | DOM console.time() Method

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