27 lines
No EOL
618 B
JavaScript
27 lines
No EOL
618 B
JavaScript
export function levelup(store) {
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return Object.assign(Object.create(store), {
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get(key, options, callback) {
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let result = store.get(key);
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if (typeof options == 'function')
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callback = options;
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if (callback) {
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if (result === undefined)
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callback(new NotFoundError());
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else
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callback(null, result);
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} else {
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if (result === undefined)
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return Promise.reject(new NotFoundError());
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else
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return Promise.resolve(result);
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}
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},
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});
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}
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class NotFoundError extends Error {
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constructor(message) {
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super(message);
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this.name = 'NotFoundError';
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this.notFound = true;
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}
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} |