What is the difference between the v-if and v-show commands in vue

This article will explain in detail what is the difference between v-if and v-show commands in vue. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

What is the difference between v-if and v-show?

The first way to answer:

The second way to answer:

V-if is true conditional rendering because it ensures that event listeners and subcomponents within the conditional block are properly destroyed and rebuilt during switching; it is also lazy: if the condition is false at the initial rendering, nothing is done-the conditional block does not begin to render until the condition becomes true for the first time.

V-show is much simpler-- no matter what the initial condition is, the element is always rendered and simply switched based on the "display" attribute of CSS.

Therefore, v-if is suitable for scenarios where conditions are rarely changed at runtime and do not need to switch conditions frequently, while v-show is suitable for scenarios where conditions need to be switched very frequently.

Why to use VueVue is a friendly, multi-purpose and high-performance JavaScript framework, using vue can create a more maintainable and testable code base, Vue allows you to split a web page into reusable components, each component contains its own HTML, CSS, JavaScript, to render the corresponding place in the web page, so more and more front-end developers use vue.

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