Underscore.js 1.7の使い方 Collections編 omit

suzuki
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var r = document.getElementById("r");
var result = _.omit({name: 'suzuki', age: 20, userid: 'i01'}, 'userid');
// => Object { name="suzuki", age=20 }
r.innerHTML = result.name;
// => suzuki
suzuki
?
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var result2 = _.omit({name: 'suzuki', age: 20, userid: 'i01'},
  function(value, key, object) {
    return _.isNumber(value);
  }
);
// => Object { name: "suzuki", userid: "i01" }
r2.innerHTML = result2.name;
// => suzuki