Checks requirements for and adds defaults to parameter objects

var optcheck = require('optcheck');

var args = {async: false, type: 'json'};
optcheck(args)
    .defaults({
        async: true,
        url: 'http://localhost'
    })
    .requires('type', 'url');
args.should.eql({async: false, type: 'json', url: 'http://localhost'});

Takes a parameter object.

Returns an optcheck object to operate on the parameter object passed in.

Checks the parameter object for properties.

Returns this.

Adds properties from object to the parameter object if the parameter object needs the property.

Returns this.