vue/no-define-model-default

disallow default values in defineModel

📖 Rule Details

This rule disallows the default option in defineModel().

When the parent passes undefined through v-model, for example from a ref that has no initial value, the child falls back to the default while the parent still holds undefined, so the two values are out of sync. Leaving out the default and initializing the value in the parent avoids that.

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🔧 Options

Nothing.

📚 Further Reading

• Guide - Component v-model / Under the Hood

🚀 Version

This rule was introduced in eslint-plugin-vue v10.12.0

🔍 Implementation

• Rule source
• Test source