This article will discuss and demonstrate how to create a JSON object and convert it into a string to send it back to a server. Show
Create a JSON Object in JavaScriptFirst, we must create an object of the To add properties inside the object, we can use the dot notation. In
The good thing about the object is that we can assign any data type to a property of the object. In the example above, we see that we have assigned a string, array, and number as the values to the object’s properties. If we print the data type of the Output: If we want to send this object to the server, it must be in string format. That is why we first need to convert this object into a string before sending it. Convert a JSON Object Into a String Using JSON.stringify() in JavaScriptThe Syntax:
The 0 (mandatory) can be an array or an object. The 1 (optional) alters the 2 process.The 3 (optional) parameter takes an integer value and inserts space (including indentation, line break characters, etc.). This parameter can be used for readability purposes.If the 3 parameter is not specified, no space will be added in the output JSON string. The default value for the 1 function and the 3 parameter is 7.To convert the JavaScript object
After converting the JavaScript object, we will store it inside 2 instead of 3, as shown below. In this article we are going to discuss how to convert a JSON string into a JavaScript object with suitables examples in JavaScript. There are two possible ways to convert a JSON string into a Javascript object – eval() and parse(). The usage of eval() method is unsafe and not preferred. It is vulnerabable to hackers. The parse() method is preferred in general anytime. The typical application for JSON is Data transfer to and from a web server. The data that has been sent from a server is always a JSON string. Using JSON.parse(), we can convert the JSON string into a JS object. SyntaxThe syntax on how to convert a JSON string into JS object is − JSON.parse(text); Where, text is the string whose value is to be converted into an object. Example 1In this example, we use parse() method to convert a JSON string to object. The dictionary is taken as a JSON string. HTML as a JSON To convert a JSON string into a JS object On executing the above code, the following output is generated. Example 2In this example, we use parse() method to convert a JSON string to object. The dictionary is taken as a JSON string. Array as a JSON To convert a JSON string into a JS object On executing the above code, the following output is generated. Example 3The below example program illustrates about converting a JSON string into JS object where the date is given as a string in JSON string. Because JSON string does not accept Date objects. How to get value from JSON string in JavaScript?Use the JavaScript function JSON.parse() to convert text into a JavaScript object: const obj = JSON.parse('{"name":"John", "age":30, "city":"New York"}'); Make sure the text is in JSON format, or else you will get a syntax error.
How to convert all values to string in JavaScript?Converting Values to Strings
Values can be explicitly converted to strings by calling either String() or n. toString() . With the String() function, let's convert a Boolean value to a string by passing the value true into the parameters for String() . When we do this, the string literal "true" will be returned.
Which method converts JSON string to JavaScript?parse() JSON parsing is the process of converting a JSON object in text format to a Javascript object that can be used inside a program. In Javascript, the standard way to do this is by using the method JSON. parse() , as the Javascript standard specifies.
Which JavaScript method converts JSON to a JavaScript value?The JSON.parse() static method parses a JSON string, constructing the JavaScript value or object described by the string.
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