_.chain

chain_.chain(obj)
Returns a wrapped object. Calling methods on this object will continue to return wrapped objects until value is called.

var stooges = [{name: 'curly', age: 25}, {name: 'moe', age: 21}, {name: 'larry', age: 23}];
var youngest = _.chain(stooges)
  .sortBy(function(stooge){ return stooge.age; })
  .map(function(stooge){ return stooge.name + ' is ' + stooge.age; })
  .first()
  .value();
=> "moe is 21"

Links:

http://underscorejs.org/index#chain

doc_Underscore

2016-04-09 09:05:18

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