Why doesn't nested Promise catch Exception as expected?

I have the following code. I expected that the 'core exception' could be caught by the 'immediately executed function (see the end)' and print out "Got it in main scope", but it was not executed as expected, that is, "Got it in main scope" is not printed. {code...} The result of ...

世界只因有你 2017-06-10 09:49:19 0  4  957

javascript - Time triggered when checkbox is checked and unchecked

$(".checkboxs_yy").click(function(){ {code...} .checkboxs_yy is a checkbox. I want it to trigger a time when it is selected, and trigger another event when it is not selected. Why did I write this This has always been unselected, how should I change it?

PHPz 2017-05-18 11:01:31 0  4  775

javascript - After the VUE parent component model changes, why do the props passed into the child component not change?

After the VUE parent component model is changed, why do the props passed to the child component not change? Parent component {code...} Child component {code...} After I click the test method, I change the banner of the parent component. Why does the model of the subcomponent not change after the ban...

習慣沉默 2017-05-19 10:30:47 0  2  677

Parent's padding ignored by sticky positioned child

How to prevent sticky elements from going behind the header? The current code snippet uses padding-top on the parent, I've also tried using margin-top or a transparent 50px border on the extra children but it doesn't seem to work. I know in this case I could easily use top:50px on the sticky label; ...

P粉182218860 2024-04-06 11:42:51 0  1  483

I did everything as the teacher told me, but when I entered the site, it said I don't have permission to enter this server.

You don't have permission to access / on this server. I did everything as the teacher told me, but when I entered the site, it said I don't have permission to access this server.

烟斗先生 2018-11-20 14:58:15 0  2  1192

git - A branch is created after the code is written. If the committed code is gone, how can I undo it? Not PUSHed yet

If a branch is created after the code is written and the committed code is gone, how can I withdraw it? Not PUSHed yet

某草草 2017-06-22 11:52:58 0  1  979

The console does not display the text input I provide

So I'm using formik to build a form in React. I made a TextInput component that contains an input field with some changes. When I use changeHandler it should update the value I entered but it doesn't. I'm wondering if I should make some changes to the textInput component. ContactForm.jsximportReact,...

P粉419164700 2024-04-04 20:30:28 0  1  548

Can't enter the online code editor

Can't enter the online code editor

小贝 2019-08-02 22:14:04 0  2  1351

javascript - Android soft keyboard event called by h5 page. After inputting text, click Enter. Why is it not executed?

Why is the Android soft keyboard event called by the h5 page not executed after entering text and clicking Enter?

PHP中文网 2017-05-16 13:29:22 0  2  537

javascript - webpack compiles different results for the same js files introduced in different ways

In the project generated by vue-cli webpack, the jquery.mockjax.js file is introduced using require in main.js, and different compilation results appear. The source code part is in UMD format {code...} Method 1: Download the version directly from the official website of jquery.mockjax.js, and then p...

phpcn_u1582 2017-05-18 11:00:43 0  1  758

At the age of 39, I am ready to enter the magical world of PHP. Is there any great person who wants to take over as an apprentice?

At the age of 39, I am ready to enter the magical world of PHP. Is there any great person who wants to take an apprenticeship? I have been doing operation and maintenance and have a basic knowledge of HTML. Now I want to learn development. Can any experts give me some learning routes?

黄金强Cena ʚɞ 2022-04-12 15:46:18 0  2  1108

What you see may not be what you think

A certain company often worked overtime, and then someone died suddenly. Then a girl came and sat in that seat, and no one told her about the sudden death. One night while working overtime, the girl couldn't write a piece of code. Thinking that her boyfriend, who was developing small programs, was v...

虎超程序 2018-11-15 16:27:40 0  0  1232

How to keep a user session active even after closing the browser or returning after being idle in PHP for a while?

In my code I can select "Remember me", when selected it saves the value of email and password in cookie and the cookie lasts for 1 month, now when the user comes to the page again, the session it is not persisted active state, instead get the value from the saved cookie and display it on t...

P粉826429907 2023-09-03 08:53:53 0  1  489

The verification code is not refreshed. I typed it following the teacher's video code.

The verification code is not refreshed. I typed it following the teacher’s video code.

- 迷舍人 2019-08-14 17:55:10 0  1  1309

Disable option added to node not working with vuetify

Hi I'm using vuetify, I created this directive so that I can disable all child elements of a parent with "disableAll" attribute, it works perfectly with some elements like normal input text, but when it is a When doing some type of checkbox (like a switch) they don't get disabled...could v...

P粉587970021 2024-03-21 19:25:23 0  1  384

Methods that no longer allow right-to-left text input

How can I prevent or at least detect right-to-left text input (like Arabic or Hebrew) in an input box?

P粉021854777 2023-08-15 20:00:01 0  1  506

I followed the operation, but the index did not appear in the newly created site, but only the wrong folder appeared. However, the index was still accessed when I accessed it. What is the reason for this?

I followed the operation, but the index did not appear in the newly created site, but only the wrong folder appeared. However, the index was still accessed when I accessed it. What is the reason for this?

轩雨阁网络技术服务 2019-12-28 19:33:07 0  4  1389

javascript - After entering the page from the menu in WeChat web development, pressing the return key does not close the browser but refreshes the current page. Any solution?

I am currently developing a public account for a spa. After entering the public account from the menu, for example, entering the A page, pressing the return key does not exit the web page, but refreshes the A page, resulting in a very poor experience. However, when I look at other people's public ac...

阿神 2017-06-30 09:57:38 0  1  907

Why does Peter appear in the browser I followed the teacher's instructions but not in the teacher's browser?

Why does Peter appear in the browser I followed the teacher's instructions but not in the teacher's browser? class Staff{ private $anme; private $age; private $salary; public function __construct($name,$age,$salary) { $this -> name = $name; $this -> age =$age; $thi

怪我咯 2019-11-02 15:44:49 0  4  1330

After checking for a long time, every time I log in, it prompts that the verification code is wrong and I can't jump. What should I do?

After checking for a long time, every time I log in, it prompts that the verification code is wrong and I can’t jump. What should I do???

Smartxh. 2019-01-29 17:27:07 0  3  1416