base-ui/src/util/object-util.js

A component library for Better Vue developmemt

/**
 * 解析层级对象
 * @param value {*} {innerObj: {a: 'xxx', b: 'yyy'}} {{a: 'xxx', b: 'yyy'}}
 * @param field innerObj.a a
 */
export const getValue = (value = {}, field = '') => {
    if (typeof value !== 'object') {
        return value;
    }

    const fields = field.split('.');
    return fields.reduce((preVal, currVal) => {
        if (!preVal) return null;
        return preVal[currVal];
    }, value);
};

export const genMapFromObjectArray = (arr, keyProperty, valueProperty) => {
    const map = {};
    if (arr && arr.length > 0) {
        arr.forEach((item) => {
            map[getValue(item, keyProperty)] = getValue(item, valueProperty);
        });
    }

    return map;
};

export const genYqgListFromObjectArray = (arr, keyProperty, valueProperty) => arr.map(item => ({
        key: item[keyProperty],
        value: item[valueProperty]
    }));

export const genYqgListFromMap = vo => Object.keys(vo).map(key => ({key, value: vo[key]}));

export const evalProp = (value, values) => {
    if (typeof value === 'function') {
        return value(values);
    }

    return value;
};

export const getSlotInstance = (child) => {
    let instance;
    if (child.componentInstance) {
        instance = child.componentInstance;
    }
    return instance;
};

export const isEmptyElement = ele => !(ele.tag || (ele.text && ele.text.trim() !== ''));

export const filterEmpty = (children = []) => children.filter(ele => !isEmptyElement(ele));

export const checkNotNull = (data) => {
    if (data === null || typeof data === 'undefined') return false;
    if (!data.toString()) return false;
    return true;
};