{"id":41,"date":"2026-07-03T14:21:59","date_gmt":"2026-07-03T12:21:59","guid":{"rendered":"https:\/\/www.lukaswojcik.com\/blog\/?page_id=41"},"modified":"2026-08-19T21:08:01","modified_gmt":"2026-08-19T19:08:01","slug":"datalayer-inspector-validator","status":"publish","type":"page","link":"https:\/\/www.lukaswojcik.com\/blog\/en\/toolbox\/datalayer-inspector-validator\/","title":{"rendered":"DataLayer Inspector &#038; Validator"},"content":{"rendered":"<div class=\"tool-content\">\n    <textarea id=\"dl-input\" placeholder='Paste your dataLayer.push({...}) JSON object here...'><\/textarea><br \/>\n    <button id=\"validate-btn\" class=\"button\">Validate DataLayer<\/button><\/p>\n<div data-mp-mask id=\"dl-error\" style=\"color: #ff6b6b; margin-top: 10px;\"><\/div>\n<div data-mp-mask id=\"dl-output\" style=\"margin-top: 20px;\"><\/div>\n<\/div>\n<p><script>\ndocument.getElementById('validate-btn').addEventListener('click', () => {\n    const input = document.getElementById('dl-input').value;\n    const output = document.getElementById('dl-output');\n    const errorDiv = document.getElementById('dl-error');<\/p>\n<p>    errorDiv.innerText = '';\n    output.innerHTML = '';<\/p>\n<p>    \/\/ Reads a JS object literal without executing it. 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