What does json look like

JSON values are found to the right of the colon. At the granular level, these need to be one of 6 simple data types:. At the broader level, values can also be made up of the complex data types of JSON object or array, which is covered in the next section.

Each of the data types that are passed in as values into JSON will maintain their own syntax, so strings will be in quotes, but numbers will not be. Though in. Writing the JSON format on multiple lines often makes it much more readable, especially when dealing with a large data set. Because JSON ignores whitespace between its elements, you can space out your colons and key-value pairs in order to make the data even more human readable:.

It is important to keep in mind that though they look similar, a JSON object is not the same format as a JavaScript object , so, though you can use functions within JavaScript objects, you cannot use them as values in JSON. The most important attribute of JSON is that it can be readily transferred between programming languages in a format that all of the participating languages can work with.

JavaScript objects can only be worked with directly through the JavaScript programming language. These objects and arrays will be passed as values assigned to keys, and typically will be comprised of key-value pairs as well. In the users. The first nested JSON object is highlighted below. A slightly more complicated example involves storing two people in one variable. To do this, we enclose multiple objects in square brackets, which signifies an array.

For instance, if I needed to include information about myself and my brother in one variable, I might use the following:. To access this information, we need to access the array index of the person we wish to access. For example, we would use the following snippet to access info stored in family :.

NOTE: This is beneficial if it will be necessary to loop through stored information, as it lends itself to a for loop with an automatically incrementing value. Another way to store multiple people in our variable would be to nest objects.

Big Data Expand child menu Expand. Live Project Expand child menu Expand. AI Expand child menu Expand. Toggle Menu Close. Search for: Search. It is a collection of key-value pairs and always separated by a comma and enclosed in curly brackets. The object has to be express by conventions — mostly missed use of attributes and elements.

We just launched W3Schools videos. Get certified by completing a course today! If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:. Code for reading and generating JSON exists in many programming languages.