Useful tips for everyday
Can SED replace new line characters? Any character or string can be replaced by using the `sed` command. Sometimes, we need to replace the newline…
How is joint PMF calculated? The joint probability mass function of two discrete random variables X and Y is defined as PXY(x,y)=P(X=x,Y=y). Note that as…
What is the foundation of computing? Research on the foundations of computing employs mathematical tools to advance our understanding of computation on both man-made computers…
How do you do null check for map in Apex? You need to add a null check to your guard condition. The corresponding member that…
Does WordPress allow PNG? Although they are usually larger in size than the equivalent JPEG image, PNG images have become quite popular on the Web…
Why does my phone keep making a noise while charging? When the magnetic sheet steel inside a charger is extending itself, it is common for…
How do I restore the default Start menu in Windows 10? Reset the start menu layout in Windows 10 Open an elevated command prompt as…
What is difference between services and applications? A mail server (as software) can be thought of as both a service and an application….Services vs. Applications.…
How do you change how long an alarm goes off? Open your phone’s Clock app . At the bottom, tap Alarm. Pick an alarm….Set the…
How do I update USB firmware? Flow of Automatic USB Firmware Upgrade Enable the USB firmware upgrade function by CLI command. Save the firmware on…