Programming Languages Archives

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Web scraping with Python: Requests

Web scraping is the process of extracting data from websites. It can be as simple as manually...

SQL IFNULL — Hurdling Over Potholes

Relational databases store information in table cells — in columns that describe aspects of an item and...

SQL FOREIGN KEY — Unlock Table Relationships

Relational databases store information in table cells — in columns that describe aspects of an item and...

The power of a SQL alias.

What is a SQL alias? In SQL, an alias is a temporary name given to a table, column,...

Closures in JavaScript.

A closure refers to the combination of a function and the lexical environment in which that function...

About JavaScript’s “this” keyword.

Functions, objects, and the this keyword are all interconnected in JavaScript. When a function is called, a...