expression-language/examples/browser-usage.html at main · jameskfry/expression-language · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Expression Language Browser Example</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
        }
        .example {
            background-color: #f5f5f5;
            padding: 15px;
            border-radius: 5px;
            margin-bottom: 20px;
        }
        .result {
            font-weight: bold;
            color: #2c3e50;
        }
        pre {
            background-color: #f0f0f0;
            padding: 10px;
            border-radius: 4px;
            overflow-x: auto;
        }
    </style>
</head>
<body>
    <h1>Expression Language Browser Example</h1>

    <div class="example">
        <h2>Basic Example</h2>
        <pre>let result = expressionLanguage.evaluate('1 + 1');</pre>
        <p>Result: <span id="basic-result" class="result"></span></p>
    </div>

    <div class="example">
        <h2>Multiple Clauses Example</h2>
        <pre>let result = expressionLanguage.evaluate('a > 0 && b != a', { a: 1, b: 2 });</pre>
        <p>Result: <span id="clauses-result" class="result"></span></p>
    </div>

    <div class="example">
        <h2>Object and Array Access Example</h2>
        <pre>let expression = 'a[2] === "three" and b.myMethod(a[1]) === "bar two"';
let values = {
    a: ["one", "two", "three"],
    b: {
        myProperty: "foo",
        myMethod: function(word) {
            return "bar " + word;
        }
    }
};
let result = expressionLanguage.evaluate(expression, values);</pre>
        <p>Result: <span id="complex-result" class="result"></span></p>
    </div>

    <!-- Include the expression-language library -->
    <script src="https://unpkg.com/expression-language/dist/expression-language.min.js"></script>

    <script>
        // Create an instance of ExpressionLanguage
        const expressionLanguage = new ExpressionLanguage.ExpressionLanguage();

        // Basic example
        document.getElementById('basic-result').textContent =
            expressionLanguage.evaluate('1 + 1');

        // Multiple clauses example
        document.getElementById('clauses-result').textContent =
            expressionLanguage.evaluate('a > 0 && b != a', { a: 1, b: 2 });

        // Object and array access example
        const expression = 'a[2] === "three" and b.myMethod(a[1]) === "bar two"';
        const values = {
            a: ["one", "two", "three"],
            b: {
                myProperty: "foo",
                myMethod: function(word) {
                    return "bar " + word;
                }
            }
        };
        document.getElementById('complex-result').textContent =
            expressionLanguage.evaluate(expression, values);
    </script>
</body>
</html>