TypeScript Playground

'; updateStage('run', false); runnerEl.srcdoc = sandboxHtml; } function downloadJavaScript() { const blob = new Blob([jsOutputEl.value], { type: 'text/javascript;charset=utf-8' }); const url = URL.createObjectURL(blob); const link = document.createElement('a'); link.href = url; link.download = 'playground.js'; document.body.appendChild(link); link.click(); document.body.removeChild(link); URL.revokeObjectURL(url); } function tidyIndents() { const tidied = sourceEl.value .replace(/\t/g, ' ') .split('\n') .map(function (line) { return line.replace(/\s+$/g, ''); }) .join('\n') .replace(/\n{4,}/g, '\n\n\n'); sourceEl.value = tidied; compileNow(); } function resetSource() { sourceEl.value = document.getElementById('tsplay-source').defaultValue; compileNow(); } sourceEl.addEventListener('input', scheduleCompile); sourceEl.addEventListener('scroll', function () { linesEl.scrollTop = sourceEl.scrollTop; }); sourceEl.addEventListener('keydown', function (event) { if (event.key === 'Tab') { event.preventDefault(); const start = sourceEl.selectionStart; const end = sourceEl.selectionEnd; sourceEl.value = sourceEl.value.slice(0, start) + ' ' + sourceEl.value.slice(end); sourceEl.selectionStart = sourceEl.selectionEnd = start + 2; scheduleCompile(); } }); document.querySelectorAll('[data-example]').forEach(function (button) { button.addEventListener('click', function () { const name = button.getAttribute('data-example'); if (EXAMPLES[name]) { sourceEl.value = EXAMPLES[name]; compileNow(); } }); }); document.querySelectorAll('.tsplay-result .tsplay-tab').forEach(function (tab) { tab.addEventListener('click', function () { setActiveTab(tab.getAttribute('data-tab')); }); }); [targetEl, moduleEl, strictEl, indexedEl, declarationsEl].forEach(function (control) { control.addEventListener('change', compileNow); }); compileBtn.addEventListener('click', compileNow); runBtn.addEventListener('click', runJavaScript); document.getElementById('tsplay-copy-source').addEventListener('click', function () { copyText(sourceEl.value, 'TypeScript'); }); document.getElementById('tsplay-copy-js').addEventListener('click', function () { copyText(jsOutputEl.value, 'JavaScript'); }); document.getElementById('tsplay-download-js').addEventListener('click', downloadJavaScript); document.getElementById('tsplay-format-btn').addEventListener('click', tidyIndents); document.getElementById('tsplay-clear-console').addEventListener('click', function () { consoleEl.textContent = 'Run the compiled JavaScript to see console output here.'; }); document.getElementById('tsplay-clear-btn').addEventListener('click', resetSource); window.addEventListener('message', function (event) { if (!event.data || event.data.tsplayToken !== runnerToken) { return; } addConsoleLine(event.data.kind, event.data.value); }); function waitForCompiler(attempt) { syncEditorStats(); if (window.ts) { compilerStateEl.textContent = 'TypeScript ' + window.ts.version + ' ready'; setStatus('ready', 'Compiler ready'); compileNow(); return; } if (attempt > 80) { compilerStateEl.textContent = 'Compiler unavailable'; setStatus('error', 'Compiler unavailable'); diagnosticsEl.innerHTML = ''; return; } setTimeout(function () { waitForCompiler(attempt + 1); }, 150); } waitForCompiler(0); })();