node package manager
Easy sharing. Manage teams and permissions with one click. Create a free org »

jsup

jsup

Update json strings in-place.

build status

example

stub

stub.json:

{
    "a" : [   1,  2,  333333,  4   ] ,
    "b" : [ 3, 4, { "c" : [ 5, 6 ] } ],
    "c" :
      444444,
    "d" : null
}

stub.js:

var jsup = require('jsup');
var fs = require('fs');
var src = fs.readFileSync(__dirname + '/stub.json', 'utf8');
 
var s = jsup(src)
    .set([ 'a', 2 ], 3)
    .set([ 'c' ], 'lul')
    .stringify()
;
console.log(s);

output:

$ node stub.js
{
    "a" : [   1,  2,  3,  4   ] ,
    "b" : [ 3, 4, { "c" : [ 5, 6 ] } ],
    "c" :
      "lul",
    "d" : null
}

methods

var jsup = require('jsup');

var j = jsup(src)

Return a new jsup updater from the json string body src.

j.get(path=[])

Get the element at path.

j.set(path, value)

Replace the element at path with value, preserving indentation.

Right now value will be run through JSON.stringify() for the replacement.

There must be an element at path already or this method will throw.

j.stringify()

Return the new string source with modifications, preserving indentation.

install

With npm just do:

npm install jsup