How to check if a 'Storage ' entry exists?

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gerardwr
Fair enough @MaBe but news.txt\1 is not recognised either.
```
s = require('Storage');
print(s.list());
filename = 'news.txt\1';
if (s.read(filename)!==undefined) {
  print("exists");
} else {
  print("does not exists");
}
```
Output is:

[
"news.txt\1",
"weath0.txt\1",
"weath1.txt\1",
"stocks.txt\1",
"messages.txt\1"
]
does not exists

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