import { isNil } from 'lodash-unified';
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import { ref } from 'vue';
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export const isUndefined = (val: any): val is undefined => val === undefined;
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export const isBoolean = (val: any): val is boolean => typeof val === 'boolean';
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export const isNumber = (val: any): val is number => typeof val === 'number';
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export const isPropAbsent = (prop: unknown): prop is null | undefined => {
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return isNil(prop);
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};
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export const isFilledArray = (val: any) => Array.isArray(val) && val.length > 0;
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/**
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*
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* @param _comp 组件构造函数
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* @returns 组件 ref
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* @example const formRef = useCompRef(ElForm);
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*/
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export const useCompRef = <T extends abstract new (...args: any) => any>(_comp: T) => ref<InstanceType<T>>();
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