Why do we need to use an onload event in the script tag after using the async attribute?

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Why do we need to use an onload event in the script tag after using the async attribute?

asked Oct 22, 2021 in Education by JackTerrance

Why do we need to use an onload event in the script tag after using the async attribute? (a) Invoke code during page loading (b) Invoke code during script loading (c) Invoke code during downloading (d) Invoke code during reloading I got this question in a job interview. Asked question is from Script Loading in section Invocation and Performance Navigation of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

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JackTerrance · Answer 1 · 2021-10-22T04:16:14+0000

The correct answer is (c) Invoke code during downloading Easy explanation: When using async you don’t know when the file will be downloaded, so you can attach an onload event handler to the script tag. This will allow you to invoke or instantiate any code that will need to be run when the file is downloaded: