# setup props Composition API Ive found that whenever I need to track reactive data and perform some operation when the data changes, computed properties were all I needed. Hooks: every hook has its own utility. For older Vue 2 versions, use the officially maintained @vue/composition-api plugin. WebThis should be rarely needed given Vue's fully automatic reactivity system. WebThere are other composition API functions, check them out in the API reference. Web Composition API . To create a ref for a property that may not exist yet, use toRef instead. In that scenario you may want to consider using computed with get and set instead. Attempting to assign a new value to the ref is equivalent to trying to modify the prop directly and is not allowed. NOTE: This course uses the Composition API. Two new features for Single File Components (SFCs, aka .vue files) have graduated from experimental status and are now considered stable:
