From eb97a0b352af062bb617cd388ba94de44369dba5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=99=BD=E8=8C=B6=E6=B8=85=E6=AC=A2?=
 <go_developer@163.com>
Date: Mon, 31 Jul 2023 17:26:12 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0in=E5=88=A4=E6=96=AD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 array.go      | 30 ++++++++++++++++++++++++++++++
 array_test.go |  5 +++++
 2 files changed, 35 insertions(+)

diff --git a/array.go b/array.go
index 99b0bf5..1b4678b 100644
--- a/array.go
+++ b/array.go
@@ -239,3 +239,33 @@ func (at *ArrayType) Unique() []interface{} {
 	}
 	return []interface{}{}
 }
+
+// In 查询一个值是否在列表里, 在的话, 返回首次出现的索引, 不在返回-1
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 16:28 2023/7/31
+func (at *ArrayType) In(input interface{}) int {
+	for idx := 0; idx < len(at.convertResult); idx++ {
+		if nil == input {
+			if nil != at.convertResult[idx] {
+				continue
+			}
+			return idx
+		}
+		if at.convertResult[idx] == nil {
+			continue
+		}
+		if reflect.TypeOf(at.convertResult[idx]).String() != reflect.TypeOf(input).String() {
+			// 类型不同
+			continue
+		}
+		sourceByte, _ := json.Marshal(at.convertResult[idx])
+		inputByte, _ := json.Marshal(input)
+		if string(sourceByte) != string(inputByte) {
+			continue
+		}
+		return idx
+	}
+	return -1
+}
diff --git a/array_test.go b/array_test.go
index 221e7c8..39bde6d 100644
--- a/array_test.go
+++ b/array_test.go
@@ -24,4 +24,9 @@ func TestArray(t *testing.T) {
 	c := map[string]interface{}{"name": "de"}
 	fmt.Println(reflect.DeepEqual(b, c))
 	fmt.Println(reflect.DeepEqual(a, b))
+	fmt.Println(Array(valInt).In("1"))
+	fmt.Println(Array(valInt).In(1))
+	fmt.Println(Array(valInt).In(2))
+	fmt.Println(Array(valInt).In(7))
+	fmt.Println(Array(valInt).In(20))
 }