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Regex Builder Comment

Providing both valid and invalid examples lets Copilot generate a precise regex instead of an overly broad one. Starting the const declaration on the next line triggers inline completion with the full pattern.

copilot-promptspatternDescriptionvalidExamplesinvalidExamples
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Prompt
// Build a regex that matches {{patternDescription}}
// Valid examples: {{validExamples}}
// Invalid examples (should NOT match): {{invalidExamples}}
// Flags: {{flags}}
// Return as a named const with a JSDoc comment explaining the pattern

const {{regexName}}: RegExp =

Variables to customize

{{patternDescription}}{{validExamples}}{{invalidExamples}}{{flags}}{{regexName}}

Why this prompt works

Providing both valid and invalid examples lets Copilot generate a precise regex instead of an overly broad one. Starting the const declaration on the next line triggers inline completion with the full pattern.

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