How to check the first one in the v-for loop checkbox by default through vue?

In iOS 17.2, Apple lets you customize the sound your iPhone uses for default notifications. This is good news for anyone who doesn't like the "bounce" tone Apple is introducing in iOS 17. In previous iOS versions, Apple allowed users to choose ringtones and text tones, as well as custom alert sounds for email, calendar, and reminder alerts. Anything else that throws notifications uses the default sound, and there's no way to change it. In iOS17, Apple subsequently changed the original default alert sound from "Tri-tone" to "Rebound". Many users didn't like the change, and some thought the new sounds were harder to hear. Therefore, the default sound in iOS17.2 is changed to your

With the continuous advancement of digital technology, front-end development has become an increasingly popular profession. Vue3 has become the first choice of more and more developers due to its simplicity, ease of use, efficiency and stability. Among them, the v-for function is one of the core functions used for list data rendering in Vue3. In this article, we will provide a detailed explanation of the v-for function in Vue3, so that you can better use it to solve actual development problems. 1. Basic syntax The basic syntax of the v-for function is as follows: <divv-

Best practices and performance optimization methods for using v-for in Vue Introduction: In Vue development, it is very common to use the v-for instruction, which can conveniently traverse and render the data of an array or object onto the template. However, improper use of v-for may cause performance issues when dealing with large-scale data. This article will introduce the best practices when using the v-for directive and provide some performance optimization methods. Best practice: When using the v-for instruction in Vue to render each item of data using a unique Key value, you need to

Using jQuery to Real-time Update the Selected Status of Check Boxes In web development, we often encounter situations where we need to update the selected status of check boxes in real time. By using jQuery, we can easily implement the function of updating the selected status of the check box in real time. Here's how to use jQuery to accomplish this task. First, we need to prepare a simple HTML structure containing multiple checkboxes:

Vue is a modern JavaScript framework that helps us build dynamic web pages and complex applications easily. In Vue, you can easily create loop structures using v-for to iteratively render data. In some specific scenarios, we can also use v-for to implement dynamic sorting. This article will introduce how to use v-for to implement dynamic sorting techniques in Vue, as well as some application scenarios and examples. 1. Use v-for to make it simple

How to solve the "[Vuewarn]:v-for="iteminiitems":item" error During the Vue development process, using the v-for directive for list rendering is a very common requirement. However, sometimes we may encounter an error: "[Vuewarn]:v-for="iteminiitems":item". This article will introduce the cause and solution of this error, and give some code examples. First, let’s understand

Youku software integrates a variety of different video resources for everyone to watch. Just search for what you want. And when downloading videos, friends can set the default download resolution of the video. If you want to know the specific operation method If so, remember to come to the PHP Chinese website to learn more. How to share the default download resolution of Youku 1. First open the Youku Video APP on your mobile phone and click [My] in the lower right corner of the page to switch. 2. After coming to my page, find the [Settings] function below and click on it to open it. 3. There is a [Default Download Resolution] on the settings page, click on it to enter the settings. 4. Finally, a list of options is displayed on the default download resolution page. Select the resolution you want to set.

In vue2, v-for has a higher priority than v-if; in vue3, v-if has a higher priority than v-for. In vue, never use v-if and v-for on the same element at the same time, which will cause a waste of performance (each rendering will loop first and then perform conditional judgment); if you want to avoid this situation, Templates can be nested in the outer layer (page rendering does not generate DOM nodes), v-if judgment is performed at this layer, and then v-for loop is performed internally.