Vue 3: Form Validation scenarios When Using v-model with Computed Properties
I'm working on a project and hit a roadblock. I've been struggling with this for a few days now and could really use some help. I've been working on a Vue 3 application where I have a form that includes a text input bound to a computed property using `v-model`. However, when I attempt to validate the form, the validation logic seems to be reading stale values. For example, I use a computed property to manipulate the input value based on some external criteria. Here’s a simplified version of my code: ```javascript <template> <form @submit.prevent="validateForm"> <input v-model="processedInput" /> <span v-if="errors.input">{{ errors.input }}</span> <button type="submit">Submit</button> </form> </template> <script> import { ref, computed } from 'vue'; export default { setup() { const rawInput = ref(''); const errors = ref({}); const processedInput = computed(() => { return rawInput.value.trim(); // some processing logic }); const validateForm = () => { errors.value = {}; if (!processedInput.value) { errors.value.input = 'Input is required.'; } // More validation logic... console.log(processedInput.value); // This logs the expected processed value }; return { rawInput, processedInput, errors, validateForm }; } }; ``` When I submit the form, even though `processedInput` logs the correct, processed value, the validation message still shows up as if the input is empty. I've tried using `watch` on `rawInput` to see if I can force a reactivity update, but that didn't help. My question is, why does the computed property seem to return the correct value on logging but fails in the validation check? Is there a better approach I should be using for form validation in Vue 3 that integrates well with computed properties? Any insights would be greatly appreciated! For context: I'm using Javascript on Linux. What am I doing wrong? This is part of a larger CLI tool I'm building. How would you solve this? Could this be a known issue?