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
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