如何基于现有jQuery UI Timepicker配置实现选当前时间并隐藏当日已过时点？

Hey there! Let's walk through how to make your jQuery UI Timepicker meet your two key requirements: auto-selecting the current time, and hiding any times that have already passed today. Here's the step-by-step solution:

To ensure only current and future times are visible, we need to set the minTime option to the current time. Since you've enabled forceRoundTime: true with a 15-minute step, the timepicker will automatically round up the current time to the nearest valid interval (e.g., if it's 10:08 AM, it'll set the minimum time to 10:15 AM).

We'll add the defaultTime: "now" option to pre-fill the input with the rounded current time, and keep your existing scrollDefault: "now" to ensure the dropdown menu scrolls directly to this time when opened.

Modified Full Initialization Code #

// Grab the current date/time to use as our minimum threshold
const currentTime = new Date();

$("#ReminderTime").timepicker({
  "showDuration": true,
  "timeFormat": "g:i A",
  "step": 15,
  "forceRoundTime": true,
  "maxTime": "11:45pm",
  "className": "timepicker-width",
  "scrollDefault": "now",
  // Hide any times before the current moment
  "minTime": currentTime,
  // Pre-fill the input with the rounded current time
  "defaultTime": "now"
});

Key Notes on the Changes: #

• minTime: currentTime: This tells the timepicker to filter out all times that occur before the current moment. The forceRoundTime setting will adjust this to the next valid 15-minute interval if the current time isn't already aligned with your step.
• defaultTime: "now": This ensures the input field starts with the rounded current time selected, so users don't have to manually choose it. Combined with scrollDefault: "now", the dropdown will automatically focus on the current time when opened.
• Your existing maxTime: "11:45pm" will still work as expected—any times beyond this will be hidden, even if they fall after the current time.

内容的提问来源于stack exchange，提问作者Priyanka Khade