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The most common point of confusion is between the file extension and the database technology ESE (Extensible Storage Engine) .
Occasionally, 3D modeling software like SketchUp creates backup or temporary files that utilize the .es3 extension (often related to saved3d formats). If this is the case:
// Code completion codeEditor.addEventListener('keydown', (event) => if (event.key === 'Tab') event.preventDefault(); const code = codeEditor.value; const words = code.split(/\s+/); const lastWord = words[words.length - 1]; if (lastWord === 'func') codeEditor.value = code + 'tion';
#code width: 100%; height: 100%; padding: 10px; font-size: 16px; font-family: monospace;
// Syntax highlighting codeEditor.addEventListener('input', () => const code = codeEditor.value; const keywords = ['if', 'else', 'for', 'while', 'function']; const keywordRegex = new RegExp(`\\b($'))\\b`, 'g'); codeEditor.innerHTML = code.replace(keywordRegex, (match) => return `<span class="keyword">$match</span>`; ); );
Most ES3 files use a JSON format , making them readable in any standard text editor.
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These activities offer immediate feedback to  help students master procedural skills.
The most common point of confusion is between the file extension and the database technology ESE (Extensible Storage Engine) .
Occasionally, 3D modeling software like SketchUp creates backup or temporary files that utilize the .es3 extension (often related to saved3d formats). If this is the case:
// Code completion codeEditor.addEventListener('keydown', (event) => if (event.key === 'Tab') event.preventDefault(); const code = codeEditor.value; const words = code.split(/\s+/); const lastWord = words[words.length - 1]; if (lastWord === 'func') codeEditor.value = code + 'tion';
#code width: 100%; height: 100%; padding: 10px; font-size: 16px; font-family: monospace;
// Syntax highlighting codeEditor.addEventListener('input', () => const code = codeEditor.value; const keywords = ['if', 'else', 'for', 'while', 'function']; const keywordRegex = new RegExp(`\\b($'))\\b`, 'g'); codeEditor.innerHTML = code.replace(keywordRegex, (match) => return `<span class="keyword">$match</span>`; ); );
Most ES3 files use a JSON format , making them readable in any standard text editor.
These activities offer immediate feedback to  help students master procedural skills - and help educators assess where intervention is needed.
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