@haigha-earwicket https://vuejs.org/v2/guide/components.html#Using-v-model-on-Components. v-model is equivalent (usually called a syntactic sugar) for/to :value="model" @input="model = $event".

@haigha-earwicket use lazy model ie. :value="model" @input="handler", where you do the actual change in your handler. You didnt need to google far enough, vue docs explained it there how v-model works.

@qiuchen yo, if you have a good suggestion or way of implementing things, better make a pr or a feature request in quasar repo, instead of comparing why this and that, imho.

@omgwalt https://we-are.bookmyshow.com/understanding-deep-and-shallow-copy-in-javascript-13438bad941c also to understand more why you need to deep copy/clone https://medium.com/nodesimplified/javascript-pass-by-value-and-pass-by-reference-in-javascript-fcf10305aa9c & https://scotch.io/bar-talk/copying-objects-in-javascript.

@omgwalt make a local deep copy of that vuex state object. try shallow copy first like this.someData = Object.assign({}, this.$store.state.someState) if it’s still referencing the vuex, then do the deep copy this.someData = JSON.parse(JSON.stringify(this.$store.state.someState)). can also use the quasar deep copy util function https://quasar.dev/quasar-utils/other-utils#(Deep)-Copy-Objects.

@floyd it’s not in the new versions anymore, most functionality has been moved to QSelect. https://quasar.dev/vue-components/select#Filtering-and-autocomplete

@kuma46 dont set a label prop. Or set it to undefined, if it’s coming from a data variable then you have to use a condition, something like :label="someVar === null ? undefined : someVar".
https://codepen.io/metalsadman/pen/mdJrMrj?editors=1010

@jammy-git this example in the docs can be used similarly with vuelidate https://quasar.dev/vue-components/input#External-validation.

@jammy-git while vuelidate isn’t really related to quasar, i’ve used their rules and are working fine. Your snippet above however have some bugs, not sure if that’s what you actually use. example "Maximum length is 255 characters" in template should be single quotes.

@Pedro use v-money or search for a regular expression for formatting your input under your country’s locale.