rename-keys

rename-keys

Modify the names of the own enumerable properties (keys) of an object.

Bug? Feature request? Please create an issue.

Quickstart

npm:

npm i rename-keys --save

bower:

bower install rename-keys --save

Usage

var rename = require('rename-keys');
rename( object, function );

Arguments

• object {Object}: the object to iterate over.
• function {Function}: the function to use to rename each own enumerable property of object.

Example

The object to iterate over:

var pkg = require('./package.json');

and this renaming function:

var addDashes = function(str) {
  return '--' + str;
};
console.log(rename(pkg, addDashes));

results in:

{ "--name": "rename-keys",
  "--description": "Modify the names of the own enumerable properties (keys) of an object.",
  "--version": "0.1.0",
  "--homepage": "https://github.com/jonschlinkert/rename-keys",
  "--author": {
    "name": "Jon Schlinkert",
    "url": "https://github.com/jonschlinkert"
  } ... }

Rename based on value

The value can also be passed in as as a second argument.

rename({a: 1, b: 2, c: 3}, function(key, value) {
  if (value > 1) return key + 'x';
});

results in:

{a: 1, bx: 2, cx: 3});

Authors

Jon Schlinkert

• twitter/jonschlinkert
• github/jonschlinkert

License

Copyright (c) 2014-2015, Jon Schlinkert. Released under the MIT license

Changelog

[1.2.0] - 2017-10-13

• Merge pull request #9 from stellard/rename_on_value
• Supports renaming a key based on the value