Does javascript forEach create a new execution context for each array item, or does it just update the lexical environment of the current execution context?

In the code below, is a new execution context created for each item in the array, or does the execution context remain the same and just the environment record of the lexical environment is updated? The code doesn't throw an error, so I assume the new scope (lexical environment) is created independe...

P粉663883862 2024-04-02 00:13:25 0  1  452

TP6 How to use exec to execute statements in batches

Currently using the framework TP6, I need to execute statements in batches except for queries, but TP6's execute seems not to be able to execute statements in batches (such as: execute("Update statement first; Update statement second;") This will report an error), I think I need PDO's exec...

lis 2020-12-16 17:06:22 0  1  1123

implement

Can I directly execute the exe file compiled by go without installing the go environment?

chao 2024-02-25 16:05:30 0  0  311

javascript - How can the hook in vue-router not be executed when refreshing the page?

This hook is also executed when the page is refreshed. Is there any way to prevent it from being executed? Or is there any other hook that is not executed when the page is refreshed?

習慣沉默 2017-07-05 10:56:38 0  1  976

Laravel got an error when re-executing php artisan make:migration

When Laravel re-executed php artisan make:migration, the error occurred: {code...} There was no error the first time, then I deleted the generated file and repeated the above command, and this error occurred. How can I fix it?

PHPz 2017-05-16 16:49:31 0  3  516

linux - scheduled task every minute cannot be executed

The liunx scheduled tasks and the daily scheduled tasks can be executed, but the tasks that are executed every minute by the liunx scheduled tasks are not executed. What is the reason? ? ? ? ? ? Ask God to specify. . . . 50 23 * sh /home/weblogic/yunwei_tool/crontab/backup_log.sh >/dev/nul...

漂亮男人 2017-06-05 11:11:41 0  3  858

Why are 4 lines executed in the end?

Why are there still these four lines in the final result? I am Goudan, I haven’t executed it yet 1 I am Goudan, I haven’t executed it yet 2 I am Goudan, I haven’t executed it yet 3 I am Goudan, I haven’t executed it yet 4

SAM 2018-12-17 00:33:24 0  1  1334

Execute to readImage with Imagick extension

Use Imagick extension to execute to readImage Use Imagick extension to execute to readImage Use Imagick extension to execute to readImage Use Imagick extension to execute to readImage

眺望未来 2019-07-24 21:31:06 0  1  988

php - cronrab scheduled execution script maximum execution time

Use crontab curl or wget to execute a php script regularly. It is found that the execution time of the script is up to 7 seconds, and the subsequent execution time will not be executed. Where can I set the running time of this script? Set_time_limit 0 has been set in the header of the php script.

迷茫 2017-06-24 09:42:18 0  2  1003

php - What should I do if UPDATE uses a subquery to update a column?

The following SQL execution is too slow. How should I optimize it? {Code...} Among them, the AA table and the BB table are the same and are one table

大家讲道理 2017-06-05 11:09:33 0  4  770

javascript - When gulp executes the webpack task, the file is generated and the loader is not executed.

gulpfile.js configuration file {code...} webpack.config.js configuration file {code...} app.js file {code...} Only with webpack, js files can be generated and executed by babel-loader , but when executing gulp, babel-loader is not executed. Beginner to webpack and gulp...

仅有的幸福 2017-05-19 10:36:28 0  1  682

javascript - vuex, getters are only executed once, data update getters data is not updated

I encountered a problem in the project. I used vuex to manage the state and data. Actions->mutations->state uses this method to modify the state data. Getters obtain the data. In the component, computed updates the obtained data. The problem is that the data is in Updated in mutations,...

曾经蜡笔没有小新 2017-06-28 09:25:43 0  4  1522

Use join in update query instead of columns when updating rows

Before update (original example table): Document ID meta key value 1ibanIBAN1234561bankaccountACCT9876542ibanIBAN5555552bankaccountACCT4444443ibanIBAN8888883bankaccountACCT333333 After running the SQL update query: Document ID meta key value 1ibanIBAN1234561b

P粉170438285 2023-08-02 12:32:01 0  1  583

javascript - About setInterval execution mechanism

//Update: This question has no reference value and is a bit confusing. I have applied to close it. For details, please see my answer below. I saw a blog mentioned two days ago: If the execution time of the setInterval callback function is greater than the specified delay time, when the timer is trig...

过去多啦不再A梦 2017-05-19 10:35:06 0  2  677

java random delayed execution

How to delay the execution of a program and specify the delay time for access, such as recording the request after receiving it, so that subsequent operations can be delayed for one day.

某草草 2017-05-27 17:40:47 0  5  936

Inertia/Laravel PATCH redirect also tries to update the referrer

I have a Laravel/InertiaJS application where I perform Axios requests from the Vue frontend to update certain models. In my case, I have a proposal display page which also displays the tasks related to the proposal. I have a Vue subcomponent that performs an Axios call to update a specific task: con...

P粉265724930 2023-09-04 11:56:57 0  1  580

An error occurred during TP5 update and it really can't be solved.

There is a problem with GradeModel::update(['delete_time'=>NULL, 'is_delete'=>0], ['is_delete'=>1]). After executing this sentence, the delete_time field value is updated successfully and all are NULL. But the is_delete field value is not updated to 0

NiKOo 2017-11-07 15:51:55 0  2  1429

javascript - A single page executes multiple jsonp ajax requests. How to judge whether one ajax request is completed and then another?

(Multiple jsonp requests at the same time will report an error) a();b(); For example, it is judged that a has been executed before executing b; The code is as follows: {code...}

仅有的幸福 2017-06-30 09:58:11 0  1  758

The execution order of the dividing line

Shouldn’t the code in the function body also be executed in order? Why is the dividing line executed first in the second brother foreach, and executed twice?

Lost 2018-03-21 15:03:45 0  5  1257

js best how to perform a new operation after two AJax async operations

I encountered an interview question today, that is, if there are two asynchronous ajax operations on the page, because the execution order of these two asynchronous operations is not sure, how can I execute a new operation after both operations are executed? The best What is the method? I answered m...

世界只因有你 2017-07-05 10:54:02 0  11  1693