PHP object-oriented cannot read mariadb

PHP is written in an object-oriented way, why can't the data be read in the select with where (>ω<). &nbs

仰望星空 2020-06-05 15:20:11 0  1  1065

About object-oriented and frameworks

In fact, it feels like objects and frameworks are like a second-hand contractor, subcontracting layer by layer. Once a problem occurs, many codes are involved. It is different from process-oriented, which is simple and crude. Especially in the framework, it is difficult to troubleshoot bugs.

虔 2018-10-23 21:32:28 0  0  930

javascript - What is the difference between js writing plug-ins using object-oriented programming and ordinary functions

For example, if I write a tab, using the oriented programming method is more complicated than ordinary function encapsulation, but it can also achieve code reuse. Why do so many people choose to use object-oriented programming plug-ins? What is the biggest difference between oriented programming and...

曾经蜡笔没有小新 2017-06-13 09:23:21 0  3  999

javascript - Answer: When the instance object calls the constructor, what is the point of this in the constructor?

This problem actually comes from when analyzing the jQuery source code, I saw that var ret = jQuery.merge(this.constructor(), elems ); is used, and this.constructor() returns an empty instance object created by the init method. Therefore, I am confused about the direction of this. the following...

ringa_lee 2017-07-05 10:39:35 0  1  805

javascript - js object-oriented

Could you please tell me what is the difference between adding parentheses or not in the mm function after new? Why do I get the same results? Can a senior expert explain the principle behind it?

扔个三星炸死你 2017-06-26 10:58:46 0  4  590

javascript - When extracting a method from an object, why is the original object lost and this becomes pointing to window?

{Code...} Why does b lose the original object this? What is the principle behind it? ================Supplement: How to understand that this of the nested function points to window? ========================= If the this of a function is determined by the execution environment when it is running, suc...

習慣沉默 2017-06-15 09:23:03 0  8  888

javascript - Is it good to use object literals to organize code?

{code...} Or {code...} Which of these two is better? The object method looks very clear, but there are many disadvantages in using it. For example, you have to put this in front of methods and variables. Will this increase unnecessary performance consumption? Will writing it as an object facilitate ...

伊谢尔伦 2017-06-12 09:28:53 0  3  627

javascript - Why is there no need to assign the value of req.session to the object in render before the page can recognize it?

I used the session middleware in express, but there is no user in the object! A value was assigned to req.session.user before redirection. This is route.png](/img/bVNmO9) This is the render page. How did you get this user value? Why don't you need to assign a user to the incoming object in render...

阿神 2017-05-16 13:32:28 0  1  524

How to create buttons in HTML and JavaScript to redirect pages to different pages

I'm creating a website using VScode and I want to create a button that when clicked will redirect to another page on the website. I want clicking the "MENU" button to jump to a new page. I've created a new file for the page I want to redirect, just not sure how to get "MENU" to a...

P粉523625080 2023-08-10 12:14:18 0  1  477

javascript - There is a problem when printing the newly composed array. There are objects in it, but the length is empty.

Array A (this.slots[0].values) is newly created in the A method, such as: this.slots[0].values.push(newValue) is created and printed out without any problem: Then in other methods, When used in method B, the printed array becomes: Comparison: What is the problem...

给我你的怀抱 2017-07-05 10:49:48 0  1  1154

javascript - A click event is added to an a tag, and I want to add a class style to the a tag within the time

There are multiple a tags in a span tag, and the a tags are implemented through ajax. I want to add a click event to the a tag, add a class style to the a tag when he clicks, and delete other a tag class styles at the same time ajax: {code...} html: {code...} javascript: { code...} ...

PHP中文网 2017-06-12 09:24:00 0  2  825

node.js - Behavioral delegation introduced in the previous book about JavaScript you don't know

https://github.com/getify/You... This book believes that the object-related style is better than the object-oriented (prototype) style. The book also states that it does not support the ES6 class syntax, but it seems that the object-oriented style is usually used. There are many, how to choose? Obje...

淡淡烟草味 2017-07-03 11:42:23 0  3  857

[Must-read for front-end job hunting] Selected front-end development interview questions and answers_Outline

Front-end development interview knowledge points outline: 1. HTML&CSS: Understanding of Web standards, browser kernel differences, compatibility, hacks, basic CSS skills: layout, box model, selector priority and use, HTML5, CSS3, mobile terminal adaptation 2. JavaScript: Data type, object-ori...

天蓬老师 2017-11-13 12:02:37 1  3  1553

java - How to solve the problem of cross-domain redirection carrying parameters? Do not use the method of splicing parameters at the end of the redirect url

How to solve the problem of cross-domain redirection carrying parameters? Do not use the method of splicing parameters at the end of the redirect URL. Project A is on server A and needs to be redirected to project B on server B, and the parameters need to be carried. The parameters are not visible t...

伊谢尔伦 2017-05-27 17:41:37 0  8  1880

How to create objects in JavaScript

Methods for creating objects in Javascript include object literals, new+constructor, Object.create(), etc. Is the Object.create() method the best way to embody the prototype-based thinking of Javascript? How does the object created by new+constructor reflect the prototype-based idea? Object literal ...

高洛峰 2017-06-12 09:29:35 0  2  776

Creating dynamic 'andWhere' queries in TypeORM

I'm trying to dynamically add a where clause to a query to filter an HTML table. I send an object to my API that contains filtered key-value pairs. It looks like this:

P粉334721359 2023-08-03 14:25:08 0  1  487

Why does newtoy.constructor === Gadget result in console false?

{Code...} The above example is taken from the book "Object-Oriented Programming Guide"

怪我咯 2017-06-26 10:57:07 0  2  881