Stringify an object/array like JSON.stringify just without all the double-quotes
npm install 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.
``sh`
npm install stringify-object
`js
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"
}
}
*/
// Also works with Map and Set
const map = new Map([['key', 'value']]);
console.log(stringifyObject(map));
//=> new Map([
//=> ['key', 'value']
//=> ])
`
Circular references will be replaced with "[Circular]".
Object keys are only quoted when necessary, for example, {'foo-bar': true}.
#### input
Type: object | Array | Map | Set
#### options
Type: object
##### indent
Type: string\\t
Default:
Preferred indentation.
##### singleQuotes
Type: boolean\true
Default:
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\undefined
Default:
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":
`js
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:
`js
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.