Which should I learn: Mithril, Vue, or Angular?

Which should I learn: Mithril, Vue, or Angular?

 Mithril is a client-side JavaScript framework for creating Single Page Applications. Vue is described as a “perceptive, quick MVVM (Model–View–ViewModel) for creating interactive interfaces.Angularjs is an open-source JS framework which is used for creating Single page applications for mobile and web development.

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