- Notifications
You must be signed in to change notification settings - Fork5
Parse and manipulate JSON5 strings
License
Rich-Harris/golden-fleece
Folders and files
| Name | Name | Last commit message | Last commit date | |
|---|---|---|---|---|
Repository files navigation
Parse aJSON5 string (like JSON, but less strict).
For theSvelte REPL, where we want to allow arbitrary data in the bottom right-hand panel, but we also want to update the object without reformatting it as JSON.
Install it withnpm install golden-fleece and import it into your app:
import*asfleecefrom'golden-fleece';
constast=fleece.parse(`true`);// { start: 0, end: 4, type: 'Literal', raw: 'true', value: true }
The returned AST isESTree compliant.
You can optionally pass callbacks that are fired whenever a value or comment is encountered:
constast=fleece.parse(str,{onComment:comment=>{console.log('got a comment',comment);},onValue:value=>{console.log('got a value',value);}});
const{ answer}=fleece.evaluate(`{ answer: 42 }`);answer===42;// true
This is where it gets fun:
conststr=`number: 1,string: 'yes',object: { nested: true },array: ['this', 'that', 'the other']`;constobject=fleece.evaluate(str);object.number=42;object.array[2]='EVERYTHING';fleece.patch(str,object)===`{number: 42,string: 'yes',object: { nested: true },array: ['this', 'that', 'EVERYTHING']}`;// true
Notice that the formatting has been preserved.
constobject={string:'hello','quoted-property':2,array:[3,4]};fleece.stringify(object)===`{string: "hello","quoted-property": 2,array: [3,4]}`;// true
To indent with spaces instead of tabs, passspaces: n, wheren is the number of spaces at each level of indentation.
fleece.stringify(object,{spaces:2})===`{ string: "hello", "quoted-property": 2, array: [ 3, 4 ]}`;// true
To prefer single-quotes to double-quotes, passsingleQuotes: true:
fleece.stringify(object,{singleQuotes:true})===`{string: 'hello','quoted-property': 2,array: [3,4]}`;// true
About
Parse and manipulate JSON5 strings
Resources
License
Uh oh!
There was an error while loading.Please reload this page.
Stars
Watchers
Forks
Packages0
Uh oh!
There was an error while loading.Please reload this page.
Contributors4
Uh oh!
There was an error while loading.Please reload this page.