Snippets

These are a collection of tips and tricks you can use to improve the performance and readability of your code.

Filter by category

All90
CSS3
General4
JavaScript78
React4
TypeScript1
JavaScript

Using the ternary operator in assignment and return

We can use the ternary operator in places where doing the same thing with if-else-branches would take a lot more code.

Read full article
JavaScript

Array methods shorthand

We can skip the arrow function when we pass the iterator in filter and map through to a second function.

Read full article
JavaScript

Destructuring in variable assignment

Destructuring lets us extract an object’s property into a variable of the same name in very little code.

Read full article
JavaScript

The nullish-coalescing operator

We can provide default values for variables in a way that respects “real” values that are still falsy.

Read full article
JavaScript

Rewriting switch statements to lookup objects

If a switch-statement only serves to map a key to a value, we can use an object to do the same in fewer lines of code.

Read full article
JavaScript

Removing duplication with higher-order functions

Are you calling the same function many times with near-identical parameters? Hide that repetition in a higher-order function for more readability.

Read full article
JavaScript

Counting months from zero

When is June the fifth month of the year? When JavaScript is involved, of course. In JavaScript, January is the zero-th month.

Read full article
JavaScript

Switching between functions with a ternary operator

The ternary operator isn’t limited to assigning values based on a condition. It also lets us switch between two near identical function calls.

Read full article
Debug
none
Grid overlay