packages/bootstrap.5.2.3/content/Scripts/bootstrap.esm.js

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

/*!
  * Bootstrap v5.2.3 (https://getbootstrap.com/)
  * Copyright 2011-2022 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
import * as Popper from '@popperjs/core';

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v5.2.3): util/index.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
 * --------------------------------------------------------------------------
 */
const MAX_UID = 1000000;
const MILLISECONDS_MULTIPLIER = 1000;
const TRANSITION_END = 'transitionend'; // Shout-out Angus Croll (https://goo.gl/pxwQGp)

const toType = object => {
  if (object === null || object === undefined) {
    return `${object}`;
  }

  return Object.prototype.toString.call(object).match(/\s([a-z]+)/i)[1].toLowerCase();
};
/**
 * Public Util API
 */


const getUID = prefix => {
  do {
    prefix += Math.floor(Math.random() * MAX_UID);
  } while (document.getElementById(prefix));

  return prefix;
};

const getSelector = element => {
  let selector = element.getAttribute('data-bs-target');

  if (!selector || selector === '#') {
    let hrefAttribute = element.getAttribute('href'); // The only valid content that could double as a selector are IDs or classes,
    // so everything starting with `#` or `.`. If a "real" URL is used as the selector,
    // `document.querySelector` will rightfully complain it is invalid.
    // See https://github.com/twbs/bootstrap/issues/32273

    if (!hrefAttribute || !hrefAttribute.includes('#') && !hrefAttribute.startsWith('.')) {
      return null;
    } // Just in case some CMS puts out a full URL with the anchor appended


    if (hrefAttribute.includes('#') && !hrefAttribute.startsWith('#')) {
      hrefAttribute = `#${hrefAttribute.split('#')[1]}`;
    }

    selector = hrefAttribute && hrefAttribute !== '#' ? hrefAttribute.trim() : null;
  }

  return selector;
};