JavaScript Objects Example of how to use Objects in Code get object data

JavaScript Objects Example of how to use Objects in Code get object data

JSON is based upon JavaScript syntax and easily converts into a JavaScript object. This is why learning how to use objects and arrays in JavaScript can help better understand JSON. JSON is a syntax that is used to serialize objects, arrays, numbers, strings, boolean and null values.

Some important key differences between JavaScript objects and JSON
property names must be double quoted
trailing commas are not allowed
JavaScript functions are not allowed
Leading zeros should not be used, and decimal points must be at least one digit after them
JSON is a string with a specified data format and it contains only properties, no methods.

Any JSON is valid JavaScript but any JavaScript object is not valid JSON. You can use the JSON methods in JavaScript code to parse JSON converting from string to object, and also object to string. JSON parse will convert a string with JSON syntax into a usable JavaScript object. JSON stringify will convert a JavaScript object into a String.

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