积累

将一个对象中的某些字段用‘-’拼接字符串

/** 原始对象 */
const viewRange = {
	ownPDeptName: 111,
	ownDeptName: 222,
	ownRoleName: 333,
	other: 'other'
}
/** 需要拼接的字段 */
const needProp = ['ownPDeptName', 'ownDeptName', 'ownRoleName']

function splitItem (props, obj, symbol) {
	return props.reduce((acc, cur, index) => {
	    if (obj[cur] && cur) {
	         acc = acc + (obj[cur] && acc ? symbol : '') + obj[cur]
	     }
        return acc
    }, '')
}
splitItem(needProp, viewRange, '-')