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conformance · v134
v134 · extend-the-console-timestamp-api-to-support-measurements-and-and-presentation-op — 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.
0
pass
0
fail
0
blocked
6
total
| id | contract | kind | verdict | detail |
|---|---|---|---|---|
console-timestamp-fn |
console.timeStamp exists. | typeof | … | |
console-timestamp-string-label |
console.timeStamp accepts the legacy string label form without throwing. | script | … | |
console-timestamp-options-object |
console.timeStamp accepts the extended call form with name and start/end (the new measurement shape). | script | … | |
console-timestamp-track-arg |
console.timeStamp accepts a track name string (presentation hint into Performance panel). | script | … | |
performance-now-exists |
performance.now() exists — the underlying timestamp source console.timeStamp uses. | typeof | … | |
console-timestamp-returns-undefined |
console.timeStamp returns undefined (it is a side-effecting recorder, not a return-value API). | script | … |