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JS: Update storage example

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Willy-JL
2024-10-16 11:32:01 +01:00
parent f96c538efe
commit 270e97ff66
1 changed files with 14 additions and 31 deletions
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45
applications/system/js_app/examples/apps/Scripts/Examples/storage.js
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@@ -1,46 +1,29 @@
let storage = require("storage");
let path = "/ext/storage.test";
function arraybuf_to_string(arraybuf) {
let string = "";
let data_view = Uint8Array(arraybuf);
for (let i = 0; i < data_view.length; i++) {
string += chr(data_view[i]);
}
return string;
}
print("File exists:", storage.exists(path));
print("File exists:", storage.fileExists(path));
print("Writing...");
// write(path, data, offset)
// If offset is specified, the file is not cleared, content is kept and data is written at specified offset
// Takes both strings and array buffers
storage.write(path, "Hello ");
let file = storage.openFile(path, "w", "create_always");
file.write("Hello ");
file.close();
print("File exists:", storage.exists(path));
print("File exists:", storage.fileExists(path));
// Append will create the file even if it doesnt exist!
// Takes both strings and array buffers
storage.append(path, "World!");
file = storage.openFile(path, "w", "open_append");
file.write("World!");
file.close();
print("Reading...");
// read(path, size, offset)
// If no size specified, total filesize is used
// If offset is specified, size is capped at (filesize - offset)
let data = storage.read(path);
// read returns an array buffer, to allow proper usage of raw binary data
print(arraybuf_to_string(data));
file = storage.openFile(path, "r", "open_existing");
let text = file.read("ascii", 128);
file.close();
print(text);
print("Removing...")
storage.remove(path);
print("Done")
// There's also:
// storage.copy(old_path, new_path);
// storage.move(old_path, new_path);
// storage.mkdir(path);
// storage.virtualInit(path);
// storage.virtualMount();
// storage.virtualQuit();
// You don't need to close the file after each operation, this is just to show some different ways to use
// There's also many more functions and options, check types docs in firmware repo