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Article Introduction：1. Sliding Window Concept Application in MongoDB // Sliding Window for Time-Series Data db.userActivity.aggregate([ // Sliding window for last 30 days of user engagement { $match: { timestamp: { $gte: new Date

2024-12-20 comment 0  553

Article Introduction：This week, the Amazon Prime Video Reacher Instagram page shared a teaser photo of a script, signaling the beginning of production. However, the image itself appears to hint at which book is being adapted. The script is pictured on a subway seat in Ne

2025-06-17 comment 0  740

Article Introduction：MySQL date function: Play with time and control data. Many friends are often dizzy when processing MySQL databases. In fact, mastering MySQL's powerful date functions can simplify the complex and easily control time data. In this article, let’s explore these functions in depth so that you will no longer be tortured by date format and time calculation. After reading, you can not only be proficient in using various date functions, but also understand the principles behind them and write more efficient and elegant SQL statements. Basic preparation: Time type and format Before starting, we need to clarify the data types that store dates and times in MySQL, such as DATE, TIME, DATETIME, TIMESTAMP, etc. They each have their own characteristics

2025-04-08 comment 0  345

Article Introduction：How to Store Current Date/Time with New Firebase Realtime Database EntriesWhen adding new data to a Firebase Realtime Database via the control...

2024-12-14 comment 0  324

Article Introduction：HTML5 introduces a variety of new input types to improve form functionality and user experience, including email, number, date, range, etc. The email type is used to enter the email address, supports automatic format verification and mobile device optimization keyboard; number is used for digital input, supports setting minimum, maximum and step size; date provides a built-in date selector and submits in ISO format; range implements sliding bar controls, suitable for scenes such as volume or rating. These input types can be elegantly downgraded to normal text boxes in older browsers, ensuring compatibility while enhancing mobile availability.

2025-07-02 comment 0  437

Article Introduction：HTML provides a variety of input types to meet different user input needs. 1. Common text input types include text, password, email, number, tel and url, which are suitable for input in various text and formats. 2. The input types related to time and date are date, time, datetime-local, month and week, providing a date selector to improve accuracy. 3. Select the class input type. The input type includes checkbox, radio, file and range, which are used for multiple selection, multiple selection, file upload and sliding adjustment. 4. Other practical types such as search, color, hidden and submit/reset

2025-07-11 comment 0  164

Article Introduction：No, there's no official confirmation that Kingdom Hearts 4 will be released in 2026. The game was announced in 2022, but Square Enix has not provided a specific release date yet, and development is progressing slowly with little information released since the announcement.

2025-05-15 comment 0  820

Article Introduction：Laravel provides several ways to control the format of dates when the model is serialized into an array or JSON. From global formatting to customization of specific properties, you can ensure consistency in date display throughout the application. Here is an example of setting the global date format in the base class:

2025-03-07 comment 0  919

Article Introduction：Telegram API, including the ability to set messages or files to send as historical dates when operating through the Telethon library. All sent messages and files will be marked with the server time when they are actually sent, which is to maintain the integrity of the message and prevent timestamp forgery. Users should manage the context of historical data through message content, file naming, or local organization.

2025-08-04 comment 0  941

Article Introduction：Common input fields for web forms include text, password, email, number, date, radio boxes, check boxes, file upload, submit buttons and reset buttons. 1. Text input (text) is used to freely enter text content, requiring additional verification; 2. Password input (password) hides user input and is often used with confirmation of passwords; 3. Email input (email) automatically checks the format, mobile adaptation optimization; 4. Number input (number) limits input to numbers and supports setting range and step size; 5. Date selection (date) provides calendar controls to improve experience, but compatibility needs to be considered; 6. Radio box (radio) is used for multi-option radio, and the name attribute must be consistent; 7. Checkbox (checkbox) is used for multiple

2025-06-26 comment 0  905

Article Introduction：There are many ways to calculate the number of days between two dates in Excel. 1. The basic method is to subtract the start date by using the end date, such as =B1-A1; 2. If you only count the working day, use the NETWORKDAYS function and optionally exclude holidays, such as =NETWORKDAYS(A1,B1,D1:D10); 3. You can add or subtract 1 to control whether the start and end date is included; 4. Use the DATEDIF function to calculate the complex differences between year, month and day, such as =DATEDIF(A1,B1,"d").

2025-07-20 comment 0  728

Article Introduction：The new HTML5 input type improves the form experience, the main methods include: 1. Use email and url types to realize automatic format verification and optimize the mobile keyboard; 2. Use number and range to process numerical input, which are suitable for accurate values ??and sliding selection respectively; 3. Use date series types to call the native date selector to improve time input efficiency. These features reduce the burden of front-end verification, but basic verification still needs to be supplemented by the server. Some types need to be combined with JS libraries to ensure compatibility on old devices.

2025-07-11 comment 0  387

Article Introduction：This article explains how to access and manage your personal data stored by various online platforms. It's crucial to understand what information companies collect and how to control its use. Updated from the original publication date of October 25

2025-02-24 comment 0  1032

Article Introduction：This guide provides an overview of common issues in Windows 10 and 11, along with practical solutions using the system's built-in tools such as utilities, troubleshooters, advanced booting, Command Prompt, Control Panel, and up-to-date hardware drive

2025-05-29 comment 0  805

Article Introduction：In PHP, judging leap years can be achieved through date() function or manual logic. 1. The leap year rules are: it can be divisible by 4 but cannot be divisible by 100, or can be divisible by 400; 2. Use date('L') to directly return the Boolean value, the advantage is that the code is simple but depends on the system date mechanism; 3. Manual implementation checks whether it can be divisible by 4, 100, and 400 through the order of judgment, the structure is clear and easy to test; 4. In actual applications, the method is selected according to the needs, and the date() is recommended for simple scenarios, and when you need to control logic, you can use custom judgment. Both methods are effective, depending on the specific project needs.

2025-07-08 comment 0  454

Article Introduction：In PHP, there are three ways to convert month numbers to names: use date function to match mktime, manual array mapping, and use the Carbon library. 1. Use date and mktime to obtain English or localized month names through system functions; 2. Array mapping is suitable for fixed mapping relationships, flexible control and does not depend on the environment; 3. The Carbon library is suitable for modern framework projects, supports internationalization and chain calls, which is more elegant and convenient.

2025-07-07 comment 0  790

Article Introduction：Windows computer time and date errors are usually caused by settings or synchronization issues. First check whether the automatic synchronization function is turned off, enter the "Control Panel → Date and Time → Internet Time" tab, check "Sync with Internet Time Server", select the default server and click "Update Now". If the failure occurs, it may be a network or firewall problem; second check whether the BIOS time is consistent with the system time, the motherboard battery is out of power or the coexistence of multiple systems may cause an error in the time after restart. You can enter the BIOS to adjust the time or run the command in Windows to use the local time; finally confirm whether the time zone setting is correct, right-click the taskbar time icon and select "Adjust date/time" and ensure that the time zone is in the city, such as China

2025-07-21 comment 0  585

Article Introduction：The following core points are required for trading in the currency circle: 1. The contract types include perpetual contracts (no due date, spot is anchored by capital fee rate) and delivery contracts (with fixed settlement date); 2. The leverage is usually 5x-125x, and the margin model is divided into full positions (shared margin, high risk) and position by position (independent calculation, risk isolation); 3. You can go long (bullish profit) or short (bearing profit); 4. The main risks are liquidation (price fluctuations hit losses) and slippage (transaction price deviations from expectations); 5. Take profit (locking profit) and stop loss (control loss); 6. The perpetual contract involves the capital fee rate, and both long and short parties pay regularly to close to the spot price; 7. It is recommended to light positions (≤10 times leverage), combine technical analysis, and strictly implement risk control (

2025-07-29 comment 0  363

Article Introduction：Priority is given to the top platforms (such as Binance, OKX) to ensure high liquidity, low slippage, and strict risk control (cold storage, multi-signature). If there is no maturity date, you need to pay attention to the fund fee rate (long and short funds settlement) and the leverage multiple (magnification of returns/risks). Configure multiple currencies (BTC ETH others) to reduce the risk of fluctuations in a single currency.

2025-03-31 comment 0  166

Article Introduction：To get the first day of a certain month, it can be implemented through PHP built-in functions. The core methods include: 1. Use the date() function to directly construct the string of the first day of the current month; 2. Use strtotime() to obtain the timestamp; 3. Use the specified date to calculate the first day of the month; 4. Use the DateTime class for object-oriented style processing. In addition, attention should be paid to time zone settings, formatted output and application in database queries. These methods are flexible and suitable for different scenarios, the key is to choose the right approach according to your needs and pay attention to details such as time zone and format control.

2025-07-05 comment 0  531