51 lines
1.7 KiB
HTML
51 lines
1.7 KiB
HTML
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<!DOCTYPE html>
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<html lang="ru">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Stateful app</title>
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<link rel="stylesheet" href="./node_modules/bootstrap/dist/css/bootstrap.css">
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</head>
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<body class="container-fluid p-2 col-12 col-md-8 col-lg-6">
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<div class="card text-center mb-2">
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<div class="card-title">
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Переменная в глобальном контексте
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</div>
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<div class="card-body">
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<div class="card-text" id="gc-content"></div>
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<button class="btn btn-primary col-6 mt-2" onclick="updateGcContent(1)">Up</button>
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</div>
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</div>
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<div class="card text-center">
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<div class="card-title">
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Переменная в хранилище
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</div>
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<div class="card-body">
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<div class="card-text" id="ls-content"></div>
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<button class="btn btn-primary col-6 mt-2" onclick="updateLsContent(1)">Up</button>
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</div>
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</div>
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</body>
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<script>
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document.addEventListener('DOMContentLoaded', () => {
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updateGcContent();
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updateLsContent();
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});
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const updateGcContent = (value = 0) => {
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const newState = (globalThis.myAppState || 0) + value;
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globalThis.myAppState = newState;
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document.getElementById('gc-content').innerText = newState;
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}
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const updateLsContent = (value = 0) => {
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const lsKey = 'state';
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const newState = parseInt(localStorage.getItem(lsKey) || 0) + value;
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localStorage.setItem(lsKey, newState);
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document.getElementById('ls-content').innerText = newState;
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}
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</script>
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</html>
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