javascript - addEventListen passes this into the second parameter to implement binding events

Recently, I was looking at the source code implementation of some libraries and discovered that this was passed into the second parameter of addEventListener. I felt confused, so I came up to ask questions. The following code is my simple simplified and tested {code...} Why can events be bound in th...

怪我咯 2017-05-18 11:03:11 0  2  950

javascript - ES6 Module can directly import commonJS modules. Is this implemented directly in ES6, or is it implemented when converting to Babel?

A package written in CommonJS specifications can be directly introduced using the syntax {code...}. This is implemented by ES6 Module or only implemented by Babel during translation.

習慣沉默 2017-07-05 10:41:50 0  1  920

PHP page uncode encoding problem

The site is always collected, and I found that some site articles are now displayed normally. When I check the source code, I see that the article title, keywords, introduction, and text are all uncoded. I would like to ask for advice on how to implement this operation in the imperial cms and zblog ...

赵泽鑫 2023-09-19 13:49:17 0  0  463

How to solve Hibernate's multi-threading problem?

I have a page that implements a function. Triggering this function will execute two java functions at the same time, thereby triggering two Hibernate operations. After executing this function, the system will issue this Exception from time to time: {code...} I personally think It's because the sessi...

淡淡烟草味 2017-05-17 10:07:17 0  1  579

javascript - Some questions about the implementation of extend function in js design pattern

In the JavaScript design pattern, the extend function is written as follows in Chapter 4.2.2 {code...} My question is about this function F. If the inheritance relationship is implemented in this way, then the prototype chain of the last object instantiated by subClass should be as shown below: But ...

typecho 2017-06-15 09:23:00 0  1  937

What is the principle of sort() method in JavaScript and how is it implemented?

sort() sorts the array and replaces the original array elements, but how is it implemented? Is it through bubbling? Quick sort or some other sorting method? Ask for advice~ {code...} Result: [1, 2, 3, 4, 6, 7, 8, 9] ——————————————————————— ———————— {code...} Result: [...

仅有的幸福 2017-06-12 09:22:48 0  2  1009

javascript - Why doesn't the one that automatically changes the background of the two scripts execute?

Some time ago, I confessed that the webpage was very interesting, so I tried to watch the video and wrote the code, but why was the script for automatically changing the background not executed? Please help me. ## Only one of the two scripts is implemented ## {code...}

天蓬老师 2017-06-08 11:02:49 0  3  870

javascript - Can anyone take a look at how this website is implemented? Some pages are written in Vue.

http://bravetime.davdian.com/This is written by Vue. 1. Is this server-side rendering or a spa application? 2. If it is server-side rendering, how is it implemented? 3. Why not just use php, jsp, ejs? What are the benefits of having to go through so much trouble to implement those templates?

某草草 2017-06-12 09:23:49 0  1  678

General error in Laravel 9.x: Field 'id' has no default value

I'm using UUIDs in my app and I've implemented the trait as shown online like this: traitUuid{protectedstaticfunctionboot():void{parent::boot();static::creating(function(Model $model){if(!$model->getKey()){$model->{$model->getKeyName()}=

P粉714780768 2024-04-06 11:12:54 0  1  515

php - Implementation of routing

When using website software, I found that the index.php in the root directory of some software can generate multiple different web pages, such as: localhost/index.php/blog; localhost/index.php/contact. How is this routing method implemented? Thanks!

仅有的幸福 2017-06-26 10:49:00 0  3  927

The PHP code is not executed, but the code is displayed in the browser source code

I try to execute some PHP code on the project (using Dreamweaver) but the code is not running. When I check the source code, the PHP code appears as HTML tags (I can see it in the source code). Apache runs fine (I'm using XAMPP) and the PHP page opens correctly, but the PHP code is not executed. Doe...

P粉914731066 2023-08-23 16:04:27 0  2  726

PHP code is not executed but shown in browser source code

I try to execute some PHP code on the project (using Dreamweaver) but the code is not running. When I check the source code, the PHP code appears as HTML tags (I can see it in the source code). Apache runs fine (I'm using XAMPP) and the PHP page opens correctly, but the PHP code is not executed. Doe...

P粉395056196 2024-01-16 11:07:24 0  2  461

PHP code is not executed but shown in browser source code

I try to execute some PHP code on the project (using Dreamweaver) but the code is not running. When I check the source code, the PHP code appears as HTML tags (I can see it in the source code). Apache runs fine (I'm using XAMPP) and the PHP page opens correctly, but the PHP code is not executed. Doe...

P粉805107717 2024-01-16 10:56:46 0  2  505

Why is only half of the source code displayed?

Dear teachers, hello, Daniel, I am following the video to learn, the video master can be displayed normally, but if I follow the operation, I can only run half of the source code, and the other half is directly displayed on the page in text format! It’s my first day to come into contact with PHP and...

卟暨 2018-07-13 21:54:37 0  3  1519

javascript - WeChat payment problem

There is such a demand. I don’t know which payment method on WeChat is used to achieve it. I would like to ask: An existing app (WeChat payment is already available in the app site) uses H5 to share a piece of payment information on WeChat, and the user who receives it opens it. Next is an order pag...

三叔 2017-06-24 09:44:04 0  2  1155

CommandText property initialization problem

I'm trying to materialize data into 2 (later 3) tables simultaneously using a C# console application. I want to implement first name, last name and user ID in table "Users", the user ID will be automatically incremented. The same userID should also be implemented into table "profile&q...

P粉668804228 2024-04-04 22:43:24 0  1  760

javascript - [MUI sub-webview positioning]

In the app project, index.html introduces a sub-webview, which needs to be positioned (as shown below): [Figure 1] Actual real-machine debugging: [Figure 2] It can be seen that it reaches the top and the original code is as follows: {code...} After code modification: {Code...} If anyone has dealt wi...

给我你的怀抱 2017-06-30 09:57:19 0  1  821

When the selection event changes, the CSS animation triggers the corresponding effect.

I'm trying to make a React app, right now I have a select input box with some Pokémon in it, what I need to do is whenever the selection changes (i.e. the Pokémon changes) the Pokémon sprite does a little shaking animation. Currently I just have a sprite that changes and an audio that plays when the...

P粉200138510 2024-04-01 09:16:28 0  1  532

How to log form validation using zod and react-hook-form like in this svelte tutorial?

I try to follow the zod verification tutorial in svelte. I have no experience with this (svelte) so I'm wondering how can I replicate this code functionality in a simple React/next app? I'm stuck on what ({request}) will be/will be passed to the async function. Also, should this be done inside useEf...

P粉421119778 2024-01-28 23:16:11 0  1  512

javascript - vue dynamically adds components

(Implemented with VUE) There is a requirement in the project, and I would like to ask for your ideas on how to implement it more reasonably. The requirement is this: clicking a "Create" button on a page will create a "single-choice question", clicking the "Create multiple-ch...

代言 2017-06-12 09:31:19 0  1  793