lodash _.find all matches
JavascriptLodashJavascript Problem Overview
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.
Javascript Solutions
Solution 1 - Javascript
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).
Solution 2 - Javascript
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));
});
Solution 3 - Javascript
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));
})