Vue – v-model with two-way data binding in custom component

Vue offers very nice binding and events system. We can create component, set some data using props, and also emit events from that component. If you read official Vue documentation, you can see examples for some standard form inputs. These examples using v-model and allows two-way binding without any additional code and without creating methods for events in parents – of course, we can still watch data from v-model. Can we use v-model way also in our custom components? Yes, it’s possible and very simple to do. See some examples.

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SweetAlert2 – Do not prompt in the future

NPM repository is great too, where we can find a lot of very good tools. On of them is SweetAlert2. Library to qucikly implement dialogs with errors, success messages or question. This library also allows to implement simple forms, like question about youir name with input, selection field, radio, files upload or other, custom template. This small tutorial is how to add “do not prompt in the future” to SweetAlert2 dialog. It’s vary simple, but some dev can be confused, how to add this, because it’s in conflict with some build-in options.

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Vue dynamic, async components (lazy load)

Vue is very nice framework that allows us to simply and quickly create apps. After many many hours and after hundreds of lines, our app can be big, really big. It’s bad for user experiences, because of long loading and delays. If we use a lot of components and many of them are rendering conditionally, we can load them asynchronously, as other chunks. How do this? It’s very simple, we must just import required files not always, but only on demand – something like lazy loading. Everything is build-in, so we only have to make only few small changes.

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Vue-fragment – many components inside template

Vue is very nice JS framework with – in my opinion – very clean and simple structure. It’s separate HTML, CSS and JavaScript, in effect it’s much cleaner than React. But Vue is not ideal, and sometimes its limitations can be strange and annoying. Good example is that we must use only one child elements on every component. It doesn’t matter in many cases, but try to render table with some child components and conditions – I promise you, it will be real nightmare.

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Vue.js – global event bus

Vue is very nice JavaScript framework – fast to use and with clean code. Most of rules are logical and easy to understand, but some limitations may be strange and problematic. One of them is one-way data flow. We can pass data from parents to child elements automatically, but in reverse, use only events data. Sometimes it may be an issue, because we have nested components structure and would like to send event to top level parent.

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