Created
January 12, 2017 04:53
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| import lz from 'lz-string' | |
| function Lstorage() { | |
| if (!(this instanceof Lstorage)) { | |
| return new Lstorage(); | |
| } | |
| Lstorage.a = {} | |
| Lstorage.len = 0 | |
| return this | |
| } | |
| const cache = {} | |
| let len = 0 | |
| const supportsLS = localStorage !== 'undefined' | |
| const storage = supportsLS ? localStorage : {} | |
| const get = (name) => { | |
| if (supportsLS) { | |
| return localStorage.getItem(name) || false | |
| } | |
| return cache[name] || false | |
| } | |
| const set = (...args) => { | |
| let name | |
| let data | |
| if (args.length === 1) { | |
| data = args[0] | |
| } else { | |
| name = args[0] | |
| data = args[1] | |
| } | |
| const dataName = name || `ls_${Lstorage.len}` | |
| if (supportsLS) { | |
| storage.setItem(dataName, data) | |
| } else { | |
| storage[dataName] = data | |
| } | |
| if (cache[dataName] !== 'undefined') { | |
| if (data === '') { | |
| len -= 1 | |
| } else { | |
| len += 1 | |
| } | |
| Lstorage.len = len | |
| } | |
| cache[dataName] = data | |
| return dataName | |
| } | |
| const rm = name => set(name, '') | |
| const getLZ = (name) => { | |
| let nameLZ | |
| if (!name.contains('__lz')) { | |
| nameLZ = name | |
| } else { | |
| nameLZ = `${name}__lz` | |
| } | |
| const dataLZ = get(nameLZ) | |
| return lz.decompressFromUTF16(dataLZ) | |
| } | |
| const setLZ = (...args) => { | |
| let name | |
| let data | |
| if (args.length === 1) { | |
| data = args[0] | |
| } else { | |
| name = args[0] | |
| data = args[1] | |
| } | |
| const dataLZ = lz.compressToUTF16(data) | |
| const nameLZ = name ? `${name}__lz` : `ls_${Lstorage.len}__lz` | |
| return set(nameLZ, dataLZ) | |
| } | |
| Lstorage.a = cache | |
| Lstorage.len = len | |
| Lstorage.prototype = { | |
| get, | |
| getLZ, | |
| set, | |
| setLZ, | |
| rm, | |
| } | |
| const ls = new Lstorage() | |
| export default { ls, Lstorage } |
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