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conformance · v136
v136 · regexp-escape — conformance probe
6 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.
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| id | contract | kind | verdict | detail |
|---|---|---|---|---|
regexp-escape-is-function |
RegExp.escape is a static method on the RegExp constructor. spec ↗ | typeof | … | |
regexp-escape-handles-meta-chars |
RegExp.escape returns a string that, when used as a pattern, matches the original literally — special characters are neutralised. spec ↗ | script | … | |
regexp-escape-throws-on-non-string |
RegExp.escape throws a TypeError when the input is not a string. spec ↗ | throws | … | |
regexp-escape-empty-string |
RegExp.escape('') returns the empty string. spec ↗ | script | … | |
regexp-escape-preserves-unicode |
RegExp.escape preserves non-meta Unicode characters unchanged. spec ↗ | script | … | |
regexp-escape-escapes-leading-digit |
Per the proposal, a leading decimal digit is escaped so the result cannot be confused with a back-reference when concatenated. spec ↗ | script | … |