63 lines
1.5 KiB
Java
63 lines
1.5 KiB
Java
var staticHGKeyRE = require('../static/staticHGKeyRE')
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var helperGetHGSKeys = require('./helperGetHGSKeys')
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var hasOwnProp = require('./hasOwnProp')
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/**
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* 检查键、路径是否是该对象的属性
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*
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* @param {Object/Array} data 对象
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* @param {String/Function} property 键、路径
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* @return {Boolean}
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*/
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function has (obj, property) {
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if (obj) {
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if (hasOwnProp(obj, property)) {
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return true
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} else {
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var prop, arrIndex, objProp, matchs, rest, isHas
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var props = helperGetHGSKeys(property)
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var index = 0
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var len = props.length
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for (rest = obj; index < len; index++) {
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isHas = false
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prop = props[index]
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matchs = prop ? prop.match(staticHGKeyRE) : ''
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if (matchs) {
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arrIndex = matchs[1]
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objProp = matchs[2]
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if (arrIndex) {
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if (rest[arrIndex]) {
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if (hasOwnProp(rest[arrIndex], objProp)) {
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isHas = true
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rest = rest[arrIndex][objProp]
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}
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}
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} else {
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if (hasOwnProp(rest, objProp)) {
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isHas = true
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rest = rest[objProp]
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}
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}
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} else {
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if (hasOwnProp(rest, prop)) {
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isHas = true
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rest = rest[prop]
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}
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}
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if (isHas) {
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if (index === len - 1) {
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return true
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}
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} else {
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break
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}
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}
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}
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}
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return false
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}
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module.exports = has
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