form-changed

0.1.0 • Public • Published

Changed

Build Status Dependency Status

Get changed Object from form with format support Demo

Install

npm i form-changed

Usage

var Changed = require('form-changed')
var form = document.forms[0]
var checker = new Changed(form, {
  pets: 'array',
  active: 'boolean',
  age: 'number'
})
 
var btn = document.getElementById('submit')
btn.addEventListener('click', function (e) {
  var changed = checker.changed()
  var str = JSON.stringify(changed, null, 2)
  document.getElementById('changed').textContent = str
})
 
document.getElementById('reset').addEventListener('click', function (e) {
  checker.reset()
})

API

Changed(form, [format])

Init with form element and format Object, format key is name for field and value could be a function or one of these:

  • number parsed with parseFloat() return 0 if field is empty
  • boolean parsed with !!value
  • timestamp parsed with (new Date(value)).getTime()
  • array treat the field as array field, always return a new array

.changed()

Get the changed values as object, or false if nothing changed, invalid are ignored from result

.reset()

Reset current form values as default

MIT license

Copyright (c) 2015 chemzqm@gmail.com

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Install

npm i form-changed

DownloadsWeekly Downloads

1

Version

0.1.0

License

MIT

Last publish

Collaborators

  • chemzqm