Because v-for execute first and then v-if/v-show in the same tag, becuase v-if not rendered anything in browser it will not work . And v-show will just show/hide but work as expected and keep element in the browser. – Niklesh Raut Nov 27 ’17 at 11:29, 9/11/2018 · Define an element with false >. Or set the v-if to reference a data or computed property that returns false . The template contents are.
6/18/2016 · Instead of taking the prop name with value vegeta it shows my v-if with Prince vegeta as text. However the moment I dynamically try to create multiple td’s by using a second v-for on the tag the v-else td seems to break. Although the td with the v-if statement works my td with the v-else doesn’t display the data from my array anymore.
So 3 parent divs that had same declaration .. v-if=cart.hasItems .. were shown/hidden as expected, only the last one that had almost exact markup didn’t update when I add/remove item from cart. Not sure is this is known/expected behaviour or not though.
v-if is also lazy: if the condition is false on initial render, it will not do anything – the conditional block won’t be rendered until the condition becomes true for the first time. In comparison, v-show is much simpler – the element is always rendered regardless of initial condition, with CSS-based toggling.
Common mistakes to avoid while working with Vue .js, Conditional Rendering — Vue.js, Conditional Rendering — Vue.js, 4/4/2018 · Looking for a front-end framework to try out, I started with React and then tried Vue .js. Unfortunately, I encountered a lot of issues with Vue .js at the very beginning.In this article, I’d like to share a few common issues that you may have to deal with when working with Vue .js.
The problem is not v-if , because Vue cannot directly detect changes to an array element, this is one of the limitations of JavaScript.. Thus, Vue provides some helper functions for this, for example Vue .set. Change this this.show[index] = !this.show[index]. to Vue .set(this.show, index, !this.show[index]). then it should work . Vue .set is not the only solution, there are several ways to do this …
