element-plus/es/components/transfer/src/composables/use-computed-data.mjs

A Component Library for Vue 3

import { computed } from 'vue';
import { usePropsAlias } from './use-props-alias.mjs';

const useComputedData = (props) => {
  const propsAlias = usePropsAlias(props);
  const dataObj = computed(() => props.data.reduce((o, cur) => (o[cur[propsAlias.value.key]] = cur) && o, {}));
  const sourceData = computed(() => props.data.filter((item) => !props.modelValue.includes(item[propsAlias.value.key])));
  const targetData = computed(() => {
    if (props.targetOrder === "original") {
      return props.data.filter((item) => props.modelValue.includes(item[propsAlias.value.key]));
    } else {
      return props.modelValue.reduce((arr, cur) => {
        const val = dataObj.value[cur];
        if (val) {
          arr.push(val);
        }
        return arr;
      }, []);
    }
  });
  return {
    sourceData,
    targetData
  };
};

export { useComputedData };
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