Reducing Katas
Practising reduce until it stops feeling like witchcraft.
Development
Roll Your Own Component Generators
A little trick to speed you along your development journey.
Shape Shifting Functions
Functions that change shape depending on what you hand them.
Higher-Order Functions
Functions that take functions, and why you already use them every day.
Call, Bind and Apply
Three ways to tell a function what ’this’ is supposed to mean.
JavaScript 101: Immediately Invoked Functions
The pattern that gave us module scope before modules turned up.
Comparison and Logical Operators in Javascript
Double equals, triple equals, and when you can trust either of them.
Javascript 101: Hoisting
What JavaScript does with your declarations before it runs a single line.
JavaScript 101: Implicit Type Coercion
Why JavaScript quietly changes your types behind your back.
JavaScript 101: Data Types
Everything JavaScript thinks a value can be, and why that matters.
Passing By Value and Passing By Reference
The distinction that trips everyone up at some point, explained properly.