How to get the time points associated with multiple time periods in javascript

Suppose there is the following time period {code...} At this time, 03:00 is a time point, because 03:00 is included in each time period, and 14:00 or 13:36 is a time point. So, how to How to obtain this associated node in multiple time periods? All it takes is one time node. Or how do I...

滿天的星座 2017-05-19 10:31:10 0  1  611

webpack packaging jQuery plugin - Stack Overflow

In multiple pages, first use providePlugin to expose jQuery to the global {code...} When referencing the jQuery plug-in, I find that I don’t know what to do. If it is an ordinary js plug-in, just require it in directly. However, some plug-ins have both js, css and pictures. If used in every page...

黄舟 2017-06-26 10:50:32 0  2  875

How to understand the save parameter in redis

Specify the period of time and how many update operations there are to synchronize the data to the data file. You can match multiple conditions {code...}

PHP中文网 2017-05-16 13:19:39 0  1  715

java - Count the daily clicks of the top ten ads from 20170403 to 20170420

There is an advertisement table advertise(advertise_id, date, count) with the following data: I need to count the top 10 advertisements in a certain period of time and the number of clicks per day during this period. The result of the query should be that there are 10 pieces of data with different a...

世界只因有你 2017-05-17 10:08:03 0  2  649

MySQL - Simple query sometimes suffers from infinite loop and increasing number of rows_fetched

I've been trying to figure out for the past 4 weeks why queries are executing intermittently forever on DockerMysqlPerconaDistribution (percona:8.0.32-24, empty my.cnf). This postscript query is run after importing multiple CSVs generated using MySQLShell's data mining algorithm. Half of the time, i...

P粉022140576 2023-09-08 09:20:56 0  1  635

nvim - How to customize vim mode and key-map in this mode?

Problem faced: When using the gitgutter plug-in, you can jump between multiple modifications through the following commands {code...} If you make a mapping for each command <leader>j/k/p or \j/k /p..., these mappings are also used by other plug-ins, and the shortcut keys are not enough...

仅有的幸福 2017-05-16 16:35:44 0  1  709

php - How to prove that two events happened at the same time?

I know that in computer theory, concurrency does not mean at the same moment, but within a certain period of time. The emphasis is on a certain period of time. Will the computer execute an event at the same time? Single-core CPUs are constantly switching, but what about multi-cores or multiple machi...

给我你的怀抱 2017-06-24 09:42:21 0  1  787

MySQL uses lead function to calculate duration from date to end of date

I have a table that stores records of different sessions of a user (subscribed, unsubscribed, left, online). I can calculate the duration of each session using the below given query. There is a situation, assuming that the user starts an online session at "11:00:00 PM on May 15, 2022", and...

P粉885035114 2024-03-28 14:43:36 0  1  513

The backend sends promotion ideas to the frontend according to the time set by the user.

Dear bosses, I want to ask you something. I have a business: the merchant user sets multiple time periods and sends multiple promotional messages to the front end in each different time period. For example: User 1 sets 8 o'clock, 10 o'clock, and 15 o'clock to publish 10 pieces of information to the ...

P粉141599316 2023-06-17 16:59:05 0  1  429

How to check if a time period overlaps with another time period in PHP Laravel

How to check if the working time of a specific user for a given time period already exists in the database. Therefore, the function should return true when working hours overlap with the given date and time. I tried it but it doesn't work. functioncheckExistingWorkingHours($user_id,$start_date,$star...

P粉011360903 2023-09-03 00:18:11 0  2  660

How to update a 'this' variable in Vue.js and set API results

I want to update my variable nbeBugs but it is not accessible inside the then function. My function getApi is an async function because the API takes time to respond to the template.vue<script>importChartDataLabelsfrom'chartjs-plugin-datalabels'importgetApifrom'../../api/api'constplugins=[Char...

P粉071626364 2023-09-06 20:36:30 0  1  508

Concurrency - How does the nginx plug-in implement time-consuming operations in a non-blocking manner?

Problem description: Everyone knows that the reason why nginx has great performance is based on its asynchronous and non-blocking nature. Therefore, when developing nginx plug-ins to handle network requests, you must remember to perform certain time-consuming operations in a blocking manner. Otherwi...

phpcn_u1582 2017-05-16 17:12:26 0  1  495

Limitations before a table can be sharded or partitioned

I'm new to database system design. After reading many articles, I am really confused what is the limit we should have 1 table without sharding or partitioning. I know it's really difficult to provide a general answer, things depend on factors like row size, data type (string, blob, etc.), number of ...

P粉190883225 2024-01-16 13:32:16 0  1  459

javascript - Use of perfect-scrollbar plug-in

I searched a lot on the Internet about how to use this plug-in, but found that none of them were correct. Ask the master: How to make the initialization of this plug-in display the y-axis scroll bar? Why is the x-axis scroll bar not displayed by default? Also, the use of this plug-in is very differe...

代言 2017-07-05 10:39:45 0  1  1535

SQL question, query, procedure or function

This is the description. There is a table that lists the time intervals required to perform a specific task: id start to complete 107:00:0011:00:00212:30:0017:00:00311:30:0014:00:00409:30:0011: 30:00510:00:0015:00:00609:00:0013:30:00707:00:0011:30:00These tasks cannot be completed simultaneously. I ...

P粉253518620 2024-04-03 10:14:31 0  1  374

javascript - Can the upload plug-in pluploader upload asynchronously?

I need to be able to upload hundreds of pictures at the same time. I found that plupload is synchronous and the efficiency is very low. Is my opening method wrong?

为情所困 2017-07-05 10:59:21 0  1  1256

How to solve the restriction on group messaging on the WeChat public account platform?

1. WeChat public account template messages do not limit the number of group messages and do not occupy the number of group messages on the WeChat public account. However, there are certain restrictions on the content of group messages. Marketing messages such as advertising and all other messages th...

whb2010 2019-03-04 14:07:59 0  0  2183

The number of daily active drivers has continued to increase since its inception

I have a list of drivers, orders and dates for the period January 1, 2022 to January 15, 2022 (15 days) in a table called all_data as follows: driver_idorder_id order date 1 a 2022-01- 011b2022-01-022c2022-01-012d2022-01-03 During this 15-day period, how do I find the number of continuously active d...

P粉434996845 2024-03-30 22:52:01 0  2  444

javascript - About highchart data rendering

Image description The chart above adds data dynamically. The variable xdata in the code is a time, and the format is 17:21:11. It can be printed out, and the y-axis can also be printed normally. But now the Y-axis data can be rendered normally, but the x-axis cannot be displayed. The expected effect...

習慣沉默 2017-06-26 10:53:06 0  1  870

504 - nginx + fastcgi + Django often 504

The number of visits to the website is very small. There was a period of time when a 504 error would appear after every weekend. Restarting fastcgi would be OK. Later, the frequency became higher and higher, from one day a week to half a day, but the intermediate code was not big. The changes feel v...

習慣沉默 2017-05-16 17:29:26 0  1  881