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localstorage.js
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localstorage.js
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import {Sync} from 'https://raw.githubusercontent.com/txthinking/denolib/master/f.js';
var localstorage = (file) => {
var sync = new Sync();
return {
clear: async () => {
return await sync.atomic(async () => {
var j = {};
await Deno.writeFile(file, new TextEncoder().encode(JSON.stringify(j)));
});
},
removeItem: async (k) => {
return await sync.atomic(async () => {
var j = {};
try {
var b = await Deno.readFile(file);
var s = new TextDecoder().decode(b);
j = JSON.parse(s);
} catch (e) {
if (e.toString().indexOf("NotFound") == -1) {
throw e;
}
}
delete j[k];
await Deno.writeFile(file, new TextEncoder().encode(JSON.stringify(j)));
});
},
setItem: async (k, v) => {
return await sync.atomic(async () => {
var j = {};
try {
var b = await Deno.readFile(file);
var s = new TextDecoder().decode(b);
j = JSON.parse(s);
} catch (e) {
if (e.toString().indexOf("NotFound") == -1) {
throw e;
}
}
j[k] = v;
await Deno.writeFile(file, new TextEncoder().encode(JSON.stringify(j)));
});
},
getItem: async (k) => {
return await sync.atomic(async () => {
var j = {};
try {
var b = await Deno.readFile(file);
var s = new TextDecoder().decode(b);
j = JSON.parse(s);
} catch (e) {
if (e.toString().indexOf("NotFound") == -1) {
throw e;
}
}
return j[k];
});
},
};
};
export default localstorage;