bootstrap-vue/src/mixins/attrs.js

With more than 85 components, over 45 available plugins, several directives, and 1000+ icons, BootstrapVue provides one of the most comprehensive implementations of the Bootstrap v4 component and grid system available for Vue.js v2.6, complete with extens

import { makePropCacheMixin } from '../utils/cache'
import { extend, isVue3 } from '../vue'

const attrsMixinVue2 = makePropCacheMixin('$attrs', 'bvAttrs')
const attrsMixinVue3 = extend({
  computed: {
    bvAttrs() {
      const bvAttrs = { ...this.$attrs }
      Object.keys(bvAttrs).forEach(key => {
        if (bvAttrs[key] === undefined) {
          delete bvAttrs[key]
        }
      })
      return bvAttrs
    }
  }
})

export const attrsMixin = isVue3 ? attrsMixinVue3 : attrsMixinVue2