I have a student who likes to wrap large sections of code in curly braces so he can collapse those sections in the code editor. Initially, I balked at it, but couldn't think of a legitimate reason not to allow him to do it. I'm wondering if this practice will create any problems later on.
Example:
var a = 0;
var b = 1;
{ if (a == b){
alert("a = b");
}
else if (a > b){
alert("a > b");
}
else if (a < b){
alert("a < b");
}
}
I know there's a debate about braces around single statements inside an if, that's not what I'm talking about. I'm talking about the "parent" braces, if you will, around the series of if/else if statements.
As deceze indicated in his comment, you are incorrect about the braces limiting the scope of the variables.
var a = "outside";
{
var a = "inside";
var b = "another inside";
}
console.log(a); // prints "inside"
console.log(b); // prints "another inside"
Having said that, if you need to add in braces to make the code easier to navigate (read: ignore) it's a sign that the function is too long and should be broken apart into well named functions.