Useful tips for everyday
What is milliseconds since epoch? The number of milliseconds since the “Unix epoch” 1970-01-01T00:00:00Z (UTC). This value is at most 8,640,000,000,000,000ms (100,000,000 days) from the…
What is the purpose of system call? System call provides the services of the operating system to the user programs via Application Program Interface(API). It…
Why do you need a standard list controller? The standard list controller allows you to create Visualforce pages that can display or act on a…
What is free space wavelength in waveguide? Guide wavelength. Guide wavelength is defined as the distance between two equal phase planes along the waveguide. The…
Is https more secure than SSH? Since you do not have a password for SSH so do not require two-factor authentication. Whoever has your private…
How do I view a shared Picasa Web Album? If you have photos or videos in a Picasa Web Album, the easiest way to still…
How do you modify the ETC environment? How to set environment variable on Ubuntu 1. /etc/environment. 1.1 Add a new environment variable MY_HOME=/home/mkyong in the…
How do I print screen and save instantly? To capture your entire screen and automatically save the screenshot, tap the Windows key + Print Screen…
What is Office 365 now called? Microsoft’s Office 365 is now Microsoft 365, a ‘subscription for your life’ – CNET. What is happening to Office…
How do you handle errors in combine? You can fix this by either catching the error as in explained in the above example or by…