stringify-object

Stringify an object/array like JSON.stringify just without all the double-quotes

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Readme

stringify-object
Stringify an object/array like JSON.stringify just without all the double-quotes

Useful for when you want to get the string representation of an object in a formatted way.
It also handles circular references and lets you specify quote type.

Install

npm install stringify-object

Usage

import stringifyObject from 'stringify-object';

const object = {
	foo: 'bar',
	'arr': [1, 2, 3],
	nested: {
		hello: "world"
	}
};

const pretty = stringifyObject(object, {
	indent: '  ',
	singleQuotes: false
});

console.log(pretty);
/*
{
	foo: "bar",
	arr: [
		1,
		2,
		3
	],
	nested: {
		hello: "world"
	}
}
*/

API

stringifyObject(input, options?)

Circular references will be replaced with "[Circular]".
Object keys are only quoted when necessary, for example, {'foo-bar': true}.

input

Type: object | Array

options

Type: object
indent
Type: string\ Default: \t
Preferred indentation.
singleQuotes
Type: boolean\ Default: true
Set to false to get double-quoted strings.
filter(object, property)
Type: Function
Expected to return a boolean of whether to include the property property of the object object in the output.
transform(object, property, originalResult)
Type: Function\ Default: undefined
Expected to return a string that transforms the string that resulted from stringifying object[property]. This can be used to detect special types of objects that need to be stringified in a particular way. The transform function might return an alternate string in this case, otherwise returning the originalResult.
Here's an example that uses the transform option to mask fields named "password":
import stringifyObject from 'stringify-object';

const object = {
	user: 'becky',
	password: 'secret'
};

const pretty = stringifyObject(object, {
	transform: (object, property, originalResult) => {
		if (property === 'password') {
			return originalResult.replace(/\w/g, '*');
		}

		return originalResult;
	}
});

console.log(pretty);
/*
{
	user: 'becky',
	password: '******'
}
*/
inlineCharacterLimit
Type: number
When set, will inline values up to inlineCharacterLimit length for the sake of more terse output.
For example, given the example at the top of the README:
import stringifyObject from 'stringify-object';

const object = {
	foo: 'bar',
	'arr': [1, 2, 3],
	nested: {
		hello: "world"
	}
};

const pretty = stringifyObject(object, {
	indent: '  ',
	singleQuotes: false,
	inlineCharacterLimit: 12
});

console.log(pretty);
/*
{
	foo: "bar",
	arr: [1, 2, 3],
	nested: {
		hello: "world"
	}
}
*/

As you can see, arr was printed as a one-liner because its string was shorter than 12 characters.