Useful tips for everyday
How to count the number of occurrences in a list? The idea is to use list method count() to count number of occurrences. def countX(lst,…
Is the memory usage too high in MySQL? It’s not a dedicated server so there’re other processes running at the same time. Anyway when MySQL…
What is timestamp without timezone in postgresql? The timestamp datatype allows you to store both date and time. However, it does not have any time…
Can you download videos from your phone to your computer? With a USB cable, connect your phone to your computer. On your phone, tap the…
Why are my outgoing calls failing on my iPhone? Check your iPhone settings Turn Airplane Mode on and off. Go to Settings and turn on…
How do I change the resolution of my black arch? #Set Resolution in BlackArch Steps: 1. In terminal type “xrandr -q” to list available resolution…
What is opportunistic TLS encryption? Opportunistic TLS (Transport Layer Security) refers to extensions in plain text communication protocols, which offer a way to upgrade a…
How to solve SyntaxError : unexpected token at position 0? SyntaxError: Unexpected token < in JSON at position 0. To solve this, you need to…
What is retina display on MacBook Air? Retina Display is a brand name used by Apple for its series of IPS LCD and OLED displays…
How is k-fold cross validation used in model evaluation? The two most common approaches used for model evaluation are the train/test split and the k-fold…