Snippets

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

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JavaScript

Clamping values in an array

When your data can contain “outliers” that are clearly unintentional, you can clamp them to all fall within the same valid range.

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JavaScript

Building objects from nested arrays

We can turn arrays of key-value-pairs into objects with a function that is available on Object.

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JavaScript

Russian Roulette

Add thrill and chaos to your code by adding a helper that only sometimes causes an infinite loop.

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JavaScript

Getting the array item with the largest given property

We can write a function that gives us the array object with the largest value for a specified property.

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JavaScript

Removing specific values from an array

This helper function lets us remove all instances of specific values from an array.

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JavaScript

Counting all array elements that match a condition

Passing functions to other functions allows us to condense logic into a few lines of code.

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JavaScript

Composing functions to run in sequence

We can chain many functions together into a single function. That new function takes one input and runs it through its individual functions one by one.

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JavaScript

Mapping over objects

With this helper function, we can map over objects and change each of their values like we would do with arrays.

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