Return in switch statements

Posted on Mon 12th, September 2016

• #1

vprunet

Return within switch statements are handled like a break (and do not return anything).
See the following example, with execution trace on Espruino and on node.js .

function foo( arg ) {
    switch (arg) {
    case 'bar': console.log( 'is bar' ); return( 'bar' );
    case 'gee': console.log( 'is gee' ); break;
    default: console.log( 'is default' ); return( 'default' );
    };
    return( 'end' );
}

console.log( '<--', foo( 'bar' ));
console.log( '<--', foo( 'gee' ));
console.log( '<--', foo( 'foo' ));

on espruino, shows as

is bar
<-- end
is gee
<-- end
is default
<-- end

on node.js, shows as

is bar
<-- bar
is gee
<-- end
is default
<-- default

• #2

Gordon

Thanks - I'll take a look at this and will see if I can fix it
• #3

Gordon

Ok, it's now fixed, so give the builds a few minutes and you'll have a working version available.

Thanks again for tracking this down to a small example and an 'expected' + 'what I get' output. It makes it miles easier for me to track problems down.

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Return in switch statements

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Return in switch statements

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Return in switch statements

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About

Return in switch statements

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Espruino