Getting to grips with the max and min aggregate functions in SQL

Max and Min in SQL

Using the AVG aggregate function in SQL to get average of the values of a column

How to get the average of a column in SQL

Using the SUM aggregate function in SQL to sum the values of a column

What convention should be used when naming databases, tables, and fields?

Learn how to use Array.prototype.slice() to split an array into even chunks

Learn how to get the minimum and maximum values of elements in an array in JavaScript

Learn how to get the union of two arrays by combining Set and the spread operator

Learn how to use Array.every() to check if all elements in array meet a condition

Learn how to use Array.isArray(value) to check if a value is an array