lodash _.find all matches

Question

I have simple function to return me object which meets my criteria.

Code looks like:

    var res = _.find($state.get(), function(i) {
        var match = i.name.match(re);
        return match &&
            (!i.restrict || i.restrict($rootScope.user));
    });

How can I find all results (not just first) which meets this criteria but all results.

Thanks for any advise.

Are you looking for `_.filter`? – georg Feb 19 '16 at 10:09 — georg, Feb 19 '16 at 10:09

score 122 · Accepted Answer · edited Feb 01 '18 at 16:07

122

Just use _.filter - it returns all matched items.

_.filter

Iterates over elements of collection, returning an array of all elements predicate returns truthy for. The predicate is invoked with three arguments: (value, index|key, collection).

edited Feb 01 '18 at 16:07

Mike Bovenlander

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answered Feb 19 '16 at 10:23

stasovlas

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score 8 · Answer 2 · answered May 15 '16 at 07:56

You can use _.filter, passing in all of your requirements like so:

var res = _.filter($state.get(), function(i) {
        var match = i.name.match(re);
        return match &&
            (!i.restrict || i.restrict($rootScope.user));
    });

Link to documentation

score 7 · Answer 3 · answered Jun 09 '17 at 18:50

Without lodash using ES6, FYI:

Basic example (gets people whose age is less than 30):

const peopleYoungerThan30 = personArray.filter(person => person.age < 30)

Example using your code:

$state.get().filter(i => {
    var match = i.name.match(re);
    return match &&
            (!i.restrict || i.restrict($rootScope.user));
})

lodash _.find all matches

3 Answers3