Introduction to the console. trace () function in JavaScript, console. trace

Source: Internet
Author: User

Introduction to the console. trace () function in JavaScript, console. trace

When debugging JavaScript programs, you sometimes need to print the stack information of function calls, which can be achieved by using console. trace. The following code is used as an example:
Copy codeThe Code is as follows:
Function doTask (){
DoSubTask (1000,10000 );
}
 
Function doSubTask (countX, countY ){
For (var I = 0; I <countX; I ++ ){
For (var j = 0; j <countY; j ++ ){}
}
Console. trace ();
}

DoTask ();

A console. trace () Statement is inserted at the end of the doSubTask () function execution. This prints the function call stack information on the debugging console. For example, in the Firebug console:

In the Firebug console, console. trace () not only prints the function call stack information, but also displays the values of parameters in the function call.

Browser support

Like console. trace () and console. log (), it is well supported in browsers with debugging tools. All major browsers support this function.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.