Useful tips for everyday
Can I edit metadata in YouTube Music? As you may have figured out already, there is currently no way to edit metadata directly in YouTube…
Can assertions be used for loop invariants? In [31], Hoare introduced invariant assertions as a key concept in the analysis of while loops. An invariant…
What is in Korn shell script? KornShell ( ksh ) is a Unix shell which was developed by David Korn at Bell Labs in the…
How do I get audio to play across multiple slides in PowerPoint? On the Insert tab, select Audio, and then Audio from File. In the…
What is the Option key on a non Mac keyboard? When using a Windows keyboard on a Mac, the Windows key is used instead of…
What is retry after? Retry-After is used with 503 which tells the user how long the service is expected to be unavailable. It is used…
How do you assign a query result to a variable in SQL? To assign a value to a variable, use the SET statement. This is…
Should I filter before join? The query optimizer is often smart enough to filter early. SQL is logical – in the where does not mean…
What is Wi-Fi attack? A wireless attack is a malicious action against wireless system information or wireless networks; examples can be denial of service attacks,…
Is there way to detect multiple tabs or windows of the same session? I am new in JavaScript and php so I have a question…