jquery - (初学者)如何将jQuery的选项和方法结合在一个语句中？

Question

在示例中，它使用 jquery ui datepicker 的“dateFormat”选项来设置格式，并使用“setDate”方法设置默认值。

  $(document).ready(function(){
    // command 1 or statement 1
    $("#datepicker").datepicker({
      dateFormat: "yy-mm-dd",
    });

    // command 2 or statement 2
    $("#datepicker").datepicker("setDate", new Date());
  });

它运行良好并且符合预期，但有两个单独的命令(语句)。

如何将选项和方法组合在一个命令/语句中，使其更加精简和干净？

Answer 1

$("#datepicker").datepicker({
      dateFormat: "yy-mm-dd",
      defaultDate: new Date()
});

基于以下链接中的文档: https://api.jqueryui.com/datepicker/

默认日期

Type: Date or Number or String Default: null Set the date to highlight on first opening if the field is blank. Specify either an actual date via a Date object or as a string in the current dateFormat, or a number of days from today (e.g. +7) or a string of values and periods ('y' for years, 'm' for months, 'w' for weeks, 'd' for days, e.g. '+1m +7d'), or null for today. Multiple types supported: Date: A date object containing the default date. Number: A number of days from today. For example 2 represents two days from today and -1 represents yesterday. String: A string in the format defined by the dateFormat option, or a relative date. Relative dates must contain value and period pairs; valid periods are "y" for years, "m" for months, "w" for weeks, and "d" for days. For example, "+1m +7d" represents one month and seven days from today.