Streamlined code structure: Sharing of optimization tips for removing else in Go language

When writing code in Go language, if-else statements are often used to make conditional judgments. However, in some cases, we can optimize the code structure and remove the else keyword to make the code more concise and readable. Here are some specific examples of other optimization techniques for removing else.

Example 1: Use if to return directly

func isPositive(num int) bool {
    if num >= 0 {
        return true
    }
    return false
}

can be simplified to:

func isPositive(num int) bool {
    if num >= 0 {
        return true
    }
    return false
}

Example 2: Nested if statement

func checkAge(age int) string {
    if age < 18 {
        return "未成年"
    } else {
        return "成年"
    }
}

can be simplified to:

func checkAge(age int) string {
    if age < 18 {
        return "未成年"
    }
    return "成年"
}

Example 3: Continuous execution of conditional judgment

func checkNum(num int) {
    if num < 0 {
        fmt.Println("负数")
    } else if num > 0 {
        fmt.Println("正数")
    } else {
        fmt.Println("零")
    }
}

can be simplified to:

func checkNum(num int) {
    if num < 0 {
        fmt.Println("负数")
        return
    }
    if num > 0 {
        fmt.Println("正数")
        return
    }
    fmt.Println("零")
}

Through the above example, we can see how to remove the else keyword to streamline the Go language code structure , making the code more compact and concise. Of course, in actual development, flexible application of these optimization techniques according to specific circumstances can improve the readability and maintainability of the code.

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