[Javascript] lodash: memoize() to improve the profermence
JavaScript to The Improve lodash
2023-09-14 08:59:20 时间
Link: https://lodash.com/docs#memoize
Example:
.service('UserPresenter', function(UserConstants){ var typeFromId = _.memoize(function(typeId){ var obj = _.findWhere(UserConstants.types, { value: typeId}); return obj ? obj.display : ''; }); return { fullName: function(user){ return user.firstName + ' ' + user.lastName; }, type: function(user){ return typeFromId(user.typeId); } }; })
It is useful when you want to find something like userId, then you can use memoize() to cache the result.
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