Lodash _.reduce Method Example

_.reduce is a little bit like a filter function. The only difference is that you can choose the form of the returned object.

Learn Lodash JS at Lodash JS Tutorial with Examples.

Lodash _.reduce Method Example

<!DOCTYPE html> <html> <head> <title>Lodash Tutorial</title> <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.11/lodash.min.js"></script> <script type="text/javascript">  var users = [  { name: "John", age: 30 },  { name: "Jane", age: 28 },  { name: "Bill", age: 65 },  { name: "Emily", age: 17 },  { name: "Jack", age: 30 }  ]   var reducedUsers = _.reduce(users, function (result, user) {  if(user.age >= 18 && user.age <= 59) {  (result[user.age] || (result[user.age] = [])).push(user);  }    return result;  }, {});    console.log(JSON.stringify(reducedUsers));  </script> </head> <body></body> </html>
The above HTML prints below output on the console:
{"28":[{"name":"Jane","age":28}],"30":[{"name":"John","age":30},{"name":"Jack","age":30}]}

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