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Here's 3 ways to empty out an array in JavaScript, clearing out all the elements.
Here's how you can check if a value is an integer in JavaScript.
Here's how you can handle HTTP FormData with Express
Here's two ways to check whether a SinonJS stub was called with given arguments.
Here's how you can use `sinon.stub()` to stub out functions and assert that they were called.
Here's how you can check whether a string does *not* start with a given regular expression in JavaScript.
Here's how you can use the RegExp `test()` function to test whether a string starts with a regular expression.
Confused by `app.use(express.json())` in Express? Here's what you need to know.
Looking to format a JavaScript date to YYYY-MM-DD? Here's two easy ways using vanilla JavaScript.
Looking to convert an array to a string in JavaScript? Here's two ways.
Here's how you can parse a URL into components in vanilla JavaScript.
Here's how you can reverse an array in JavaScript, both in-place and without mutating the original array.
Checking if a property is undefined in JavaScript is easy, but has some nuances. Here's what you need to know 👉
Mongoose doesn't have a `deleteById()` function, but here's how you can delete an object by its _id 👉
Here's how you can compare 2 arrays of numbers in vanilla JavaScript.
Need to remove the last character from a string in JavaScript? Here's 3 ways 👉
Mongoose models have an `deleteMany()` function that allows deleting all documents that match a filter. Here's what you need to know.
Mongoose models have an `updateMany()` function that allows updating all documents that match a filter. Here's what you need to know.
All about Webpack's `definePlugin()` function: how it works, and when to use it.