[Chapter 5] 5.13 The Empty Statement

Chapter 5
Statements

5.13 The Empty Statement

One final legal statement in JavaScript is the empty statement. It looks like this:

Executing the empty statement obviously has no effect and performs no action. You might think that there would be little reason to ever use such a statement, but it turns out that the empty statement is occasionally useful when you want to create a loop that has an empty body. For example:

// initialize an array a
for(i=0; i < a.length; a[i++] =index.html 0) ;

To make your code clear, it can be useful to comment your empty statements as such:

for(i=0; i < a.length; a[i++] =index.html 0) /* empty */ ;


return		Summary of JavaScript Statements

file: /Techref/language/java/script/definitive/ch05_13.htm, 3KB, , updated: 2019/10/14 16:00, local time: 2025/4/30 10:34,

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