41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
// Copyright 2022 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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export default class LocalStorageArray {
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data: string[] = [];
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maxSize: number;
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key: string = "__pw_repl_history";
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constructor(maxSize: number = 4) {
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this.maxSize = maxSize;
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const curHistory = localStorage.getItem(this.key);
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if (curHistory) {
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this.data = JSON.parse(localStorage.getItem(this.key)!)
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}
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}
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unshift(data: string) {
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this.data.unshift(data);
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if (this.data.length > this.maxSize) {
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this.data = this.data.slice(0, this.maxSize);
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}
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localStorage.setItem(this.key, JSON.stringify(this.data));
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}
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clear() {
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this.data = [];
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localStorage.removeItem(this.key);
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}
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}
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