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20220330_Vote/Ewide.Web.Entry/wwwroot/lib/xe-utils/has.js

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