update

1. 增加了一个条件判断返回泛型结果的函数；

condition.go

@@ -0,0 +1,24 @@
+// Copyright 2021 ecodeclub
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ekit
+
+// IfThenElse 根据条件返回对应的泛型结果，请注意，结果值在传入时就会访问，请务必确认其合法性
+// 例：传 trueValue 时传入了一个指针对象并调用其方法，需要先判空
+func IfThenElse[T any](condition bool, trueValue, falseValue T) T {
+	if condition {
+		return trueValue
+	}
+	return falseValue
+}

condition_test.go

@@ -0,0 +1,26 @@
+// Copyright 2021 ecodeclub
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ekit
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestIfThenElse(t *testing.T) {
+	i := 7
+	i = IfThenElse(false, i, 0)
+	assert.Equal(t, i, 0)
+}