I have a pinNumber value. How to mask it (ie) say if my pinNumber is 1234 and mask it with four asteriks symbol instead of showing the numbers. This maske...

I am trying to compare two screen shots on a webpage. It is a practice page on saucelab. When you login as a standart_user and click the login button, it ...

Assuming we have a database project called MyDatabase then a file called MyDatabase.jfm appears in the root of the project directory. It is exclusively lo...

Until now I believed that 1024 bytes equals 1 KB (kilobyte) but I was reading on the internet about decimal and binary system. So, actually 1024 bytes = 1...

I don't understand the reason for doing Model.limit(6).offset(5) when we have to get 6 elements starting from the 6th index. I think that it should b...

When trying to install a signed application (app-release.apk), a "Blocked by Play Protect" alert is shown and the app is not installed. However, an unsign...

If I have an image of resolutin of 512 * 512, and this image is indexed with 256 color values, how to calulate the size of the image (file size ) ?

How can I find given text within a string? After that, I'd like to create a new string between that and something else. For instance, if the string w...

I encounter a strange problem when trying to alter values from a Hash. I have the following setup: myHash = { company_name:"MyCompany", street:"Mainstreet...

I just gave a database diagram for a DB I created to our head database person, and she put a bunch of notes on it suggesting that I rename certain tables ...