Created
September 27, 2019 02:49
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localStorage wrapper for KaiOS
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class Storage { | |
constructor(name) { | |
this.name = name; | |
this.read(); | |
} | |
// return data | |
list() { | |
return this.read(); | |
} | |
// add an item | |
add(item) { | |
this.data.push({ | |
id: Math.random().toString(16).slice(2), | |
date: new Date().toISOString(), | |
data: item | |
}) | |
return this.write(); | |
} | |
// update item | |
update(id, cb) { | |
let item = this.data.find(itm => itm.id === id) | |
// ignore invalid ids | |
if (!item) { return; } | |
item.data = { | |
...item.data, | |
...cb(item.data) | |
}; | |
return this.write(); | |
} | |
// remove item by id | |
remove(id) { | |
this.data = this.data | |
.filter(item => { | |
return item.id !== id | |
}); | |
return this.write(); | |
} | |
// destroy all items | |
destroy() { | |
this.data = []; | |
localStorage.clear(); | |
} | |
// read and write to localStorage | |
read() { | |
this.data = JSON.parse(localStorage.getItem(this.name)) || []; | |
return [...this.data]; | |
} | |
write() { | |
localStorage.setItem(this.name, JSON.stringify(this.data)); | |
return this.read(); | |
} | |
} | |
module.exports.default = Storage; |
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