Vue.js is unable to render the template using Object

  1. During this demonstration at https://jsfiddle.net/ccforward/fa35a2cc/, I encountered an issue where the template could not render and the data in resultWrong remained empty with a value of {}

  2. At https://jsfiddle.net/ccforward/zoo6xzck/, utilizing a temporary variable to store asynchronous data allowed me to successfully retrieve the result and render the template

  3. Incorporating another function called getRightData() within the methods section enabled getWrongData() to function properly, resulting in the successful rendering of the template. link: https://jsfiddle.net/ccforward/7f42owpc/4/

  4. If the getRightData() method is removed, the functionality of getWrongData() ceases to work. link: https://jsfiddle.net/ccforward/7f42owpc/3/

javascriptvue.js

Answer №1

It is important to note that Vue may not detect dynamically added properties to an object unless they are added using the set method.

Check out this updated example code snippet demonstrating how to properly add properties to an empty object using this.$set.

In some cases, simply adding properties using an index may not trigger DOM updates in Vue.

When dealing with reactive values like resultRight, Vue will automatically update the DOM when these values change.

While it may seem like everything is functioning correctly in certain scenarios, Vue's reactivity system plays a crucial role in updating the DOM based on changes in reactive values.

If Vue is unaware of newly added properties or if the object reference remains unchanged, it may fail to update the DOM accordingly.

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