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This article will explain in detail how to format JSON code in js. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Format JSON code

I'm sure you've all used the JSON.stringify method, which converts a JavaScript object or value into a JSON string. His grammar is as follows:

JSON.stringify (value, replacer, space)

It has three parameters:

Value: the value to be serialized into a JSON string.

Replacer optional: if the parameter is a function, each property of the serialized value will be converted and processed by the function during serialization; if the parameter is an array, only the property names contained in the array will be serialized to the final JSON string; if the parameter is null or not provided, all properties of the object will be serialized.

Space optional: specify a blank string for indentation to beautify the output (pretty-print); if the parameter is a number, it represents how many spaces it has; the upper limit is 10. If the value is less than 1, there are no spaces; if the parameter is a string (take the first 10 letters of a string when the length of the string exceeds 10 letters), the string will be used as a space; if the parameter is not provided (or null), there will be no spaces.

Typically, we write a parameter to convert a JavaScript object or value to a JSON string. You can see that it also has two optional parameters, so we can use them to format the JSON code:

Console.log (JSON.stringify ({alpha: 'Aids, beta:' B'}, null,'\ t'))

The output is as follows:

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