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I'm having trouble binding radiobuttons to boolean values in model.
In this example: https://jsfiddle.net/krillko/npv1snzv/2/
On load, the radio radio button is not checked, and when I try to change them, the 'primary' value in model is becomes empty.
I've tried:
:checked="variation.primary == true" but with no effect.
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It provides two-way data binding by binding the input text element and the value binded to a variable assigned.
The v-bind directive is a Vuejs directive used to bind one or more attributes, or a component prop to an element. If that attribute is binded to our data defined in Vuejs instance then dynamically changes can be observed as data changes.
The v-model directive makes two-way binding between a form input and app state very easy to implement. One can bind a form input element and make it change the Vue data property when the content of the field changes.
lazy. By default, v-model syncs with the state of the Vue instance (data properties) on every input event - which means every single time the value of our input changes. The . lazy modifier changes our v-model so it only syncs after change events. The change event is triggered when a change is commited.
To bind radio buttons to boolean values instead of string values in Vue, use v-bind on the value attribute:
<input type="radio" v-model="my-model" v-bind:value="true"> <input type="radio" v-model="my-model" v-bind:value="false"> I'll leave it to you to figure out how to match these values with your backend data.
Checkboxes are not so good for this scenario; the user could leave them both blank, and you don't get your answer. If you are asking a yes/no or true/false question where you want only one answer, then you should be using radio buttons instead of checkboxes.
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