嵌套if和&&amp ;?之间有什么区别？ [英] What are the differences between nested if and &&?

问题描述

写作之间有什么区别：

  if（condition1&& condition2）{
 //一些代码
} 
  

并且：

  if（condition1）{
 if（condition2）{
 // some code 
} 
} 
  

如果有，哪一个更好？

解决方案

差异主要在于可读性和维护性。

2个逻辑条件的连接通常意味着它们之间存在语义关系。 / p>

另一件需要考虑的事情是范围界定。嵌套的 if 为您提供了额外的灵活性。

What are the differences between writing:

if(condition1 && condition2){
    //some code
}

And:

if(condition1){
    if(condition2){
        //some code
    }
}

If there are any, which one is better?

解决方案

The differences are mainly in readability and maintenance.

Concatenation of 2 logical conditions should usually imply that there is a semantic relation between them.

Another thing to consider is the scoping. The nested if gives you additional flexibility in this area.

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