bootstrap-vue/esm/utils/normalize-slot.js

BootstrapVue, with over 40 plugins and more than 80 custom components, custom directives, and over 300 icons, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated WAI-AR

import identity from './identity';
import { concat } from './array';
import { isFunction } from './inspect'; // Note for functional components:
// In functional components, `slots` is a function so it must be called
// first before passing to the below methods. `scopedSlots` is always an
// object and may be undefined (for Vue < 2.6.x)

/**
 * Returns true if either scoped or unscoped named slot exists
 *
 * @param {String, Array} name or name[]
 * @param {Object} scopedSlots
 * @param {Object} slots
 * @returns {Array|undefined} VNodes
 */

var hasNormalizedSlot = function hasNormalizedSlot(names) {
  var $scopedSlots = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  var $slots = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  // Ensure names is an array
  names = concat(names).filter(identity); // Returns true if the either a $scopedSlot or $slot exists with the specified name

  return names.some(function (name) {
    return $scopedSlots[name] || $slots[name];
  });
};
/**
 * Returns VNodes for named slot either scoped or unscoped
 *
 * @param {String, Array} name or name[]
 * @param {String} scope
 * @param {Object} scopedSlots
 * @param {Object} slots
 * @returns {Array|undefined} VNodes
 */


var normalizeSlot = function normalizeSlot(names) {
  var scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  var $scopedSlots = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  var $slots = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
  // Ensure names is an array
  names = concat(names).filter(identity);
  var slot;

  for (var i = 0; i < names.length && !slot; i++) {
    var name = names[i];
    slot = $scopedSlots[name] || $slots[name];
  } // Note: in Vue 2.6.x, all named slots are also scoped slots


  return isFunction(slot) ? slot(scope) : slot;
}; // Named exports


export { hasNormalizedSlot, normalizeSlot }; // Default export (backwards compatibility)

export default normalizeSlot;