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Introduction to JavaScript: First Steps

for-loops, continued

Explore how to write and refactor JavaScript for-loops using common practices like i++ notation. Learn to iterate through arrays effectively and understand the importance of loop conditions to prevent infinite loops.

We'll cover the following...

Refactoring our Code

For-loops are one of the few places with a single letter name is acceptable. Instead of index, it’s common practice to use i or j. Let’s refactor our code from the previous lesson.

Javascript (babel-node)
for(let i = 0; i < 10; i = i + 1) {
    console.log(i);
}

It’s also common to see ...