Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.2k views
in Technique[技术] by (71.8m points)

google chrome - Snippets - Identifier has already been declared

I wrote this in a Chrome snippet:

let myVar = someValue;
 

And when I try to run it 2nd time, it says the variable has already been declared and throws an error at first line.

The error is:

Uncaught SyntaxError: Identifier 'myVar' has already been declared at :1:1

And of course, this would be the default behavior for the Console but it doesn't seem to make much sense here..

Is this intended? Is there any way around this?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Use block scope and wrap it in '{}'.

{
  enter code here
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...