Graduate programmes and junior roles in Ghana often test data structures, problem solving and clean code before they ask anything about frameworks. Remote employers do the same with short coding exercises. These fundamentals are what let you turn a business need, such as "total today's sales", into code that works.
The building blocks
- Variables hold values:
const price = 15; - Types: numbers, strings (text), booleans (true or false), and empty values such as
null. - Conditions choose what to do:
if,else. - Loops repeat work:
for,while, or array methods such asmapandfilter. - Functions give a name to a piece of work so you can reuse it and test it.