JavaScript
Hoisting and the temporal dead zone
See why declarations and expressions behave differently, and how var, let, and const interact with the TDZ.
2 min readLesson 09
Notes on
JavaScript.
The language of the web, one concept at a time.
JavaScript
9 articles- JavaScript
Immediately invoked function expressions
Use an IIFE to run a function immediately after defining it, and avoid a common semicolon pitfall.
2 min readLesson 08 - JavaScript
Arrow functions
Write concise arrow functions, use an implicit return, and omit parentheses for a single simple parameter.
1 min readLesson 07 - JavaScript
Declaring and calling functions
Compare function declarations and expressions, define parameters, and call a function with arguments.
1 min readLesson 06 - JavaScript
Loops, break, and continue
Replace repeated statements with for, while, and do...while loops, then control iteration with break and continue.
2 min readLesson 05 - JavaScript
switch statements
Understand case, default, break, and fall-through, and compare switch with if/else.
2 min readLesson 04 - JavaScript
if and else
Write conditional branches, recognize falsy values, and compare loose and strict equality.
2 min readLesson 03 - JavaScript
Types, operators, and variables
Explore primitive and object values, operator precedence, and the differences between var, let, and const.
3 min readLesson 01 - JavaScript
Why JavaScript?
Camel case, zero-based indexing, and JavaScript's role in frontend and backend web development.
2 min readLesson 00
From the original blog
Two historical notices, preserved separately from the tutorials.
Welcome to Informatics The original about page