JSON forEach tutorial shows how to loop over a JSON array in JavaScript. In this tutorial we use JSON server to handle test data. The json-server is a JavaScript library to create testing REST API.

JSON arrays. JSON arrays are an ordered list of values. Arrays are used to store objects, strings, number notation and Boolean notation. An array can be made up of multiple data types. Arrays in JSON ...

Complex JSON: Nesting, objects, and arrays So far, you’ve only seen examples of JSON used with shallow (or simple) objects. That just means every field on the object holds the value of a primitive.