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How to determine whether int is empty in Golang

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2020-01-13 09:41:5111017browse

How to determine whether int is empty in Golang

Golang is a programming language developed by Google that is statically strongly typed, compiled, concurrently typed, and has garbage collection capabilities. Int is a reserved keyword in golang. Let's take a look at the method of determining whether int is empty in golang.

Method 1:

First convert the int type data into the String type, and then determine whether the String type data is empty.

Sample code:

int point; 
String val=point +""; 
if("".equals(val)){ 
// do something...
}

PS: int point is not an object, and the default is 0 when the int type is empty.

Method 2:

If point is of type int, the result obtained cannot be null.

If no field is inserted when inserting a piece of data, and the default value in the database is null, you can use

Integer point= GiftInfo.getPoints();

and then determine whether point is equal to null.

Sample code:

Integer point= GiftInfo.getPoints();
if(point == null){ 
// do something...
}

For more golang knowledge, please pay attention to the golang tutorial column on the PHP Chinese website.

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