Implement console.time, console.timeEnd, console.timeLog, console.count, and console.countReset

[Nedunchezhiyan-M]

Summary

Implement five console methods that were previously stubbed as no-ops in the React Native console polyfill:

• console.time(label) - Starts a named timer using high-resolution nativePerformanceNow (with Date.now fallback)
• console.timeEnd(label) - Logs the elapsed time and removes the timer
• console.timeLog(label, ...data) - Logs the elapsed time without stopping the timer, with optional extra data
• console.count(label) - Logs how many times it has been called with the given label
• console.countReset(label) - Resets the counter for the given label

All five methods follow the WHATWG Console spec:

• Default label is "default" when none is provided
• Warnings are logged for duplicate timers, missing timers, and missing counters
• Labels are coerced to strings

Previously, developers using console.time('myOperation') / console.timeEnd('myOperation') for profiling would silently get no output, making it look like the code was never reached. This was a common source of confusion.

Changelog:

[GENERAL] [ADDED] - Implement console.time, console.timeEnd, console.timeLog, console.count, and console.countReset in the console polyfill

Test Plan

Added consoleTimers-itest.js with tests covering:

• Basic timer start/end with elapsed time output
• Default label behavior (uses "default" when omitted)
• Warning on duplicate timer names
• Warning on ending/logging nonexistent timers
• timeLog logging without stopping the timer
• Multiple concurrent timers
• Count incrementing and logging
• Count reset behavior
• Warning on resetting nonexistent counters
• Independent tracking of separate labels

[meta-cla]

Hi @Nedunchezhiyan-M!

Thank you for your pull request and welcome to our community.

Action Required

In order to merge any pull request (code, docs, etc.), we require contributors to sign our Contributor License Agreement, and we don't seem to have one on file for you.

Process

In order for us to review and merge your suggested changes, please sign at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need to sign the corporate CLA.

Once the CLA is signed, our tooling will perform checks and validations. Afterwards, the pull request will be tagged with CLA signed. The tagging process may take up to 1 hour after signing. Please give it that time before contacting us about it.

If you have received this in error or have any questions, please contact us at cla@meta.com. Thanks!

[meta-cla]

Thank you for signing our Contributor License Agreement. We can now accept your code for this (and any) Meta Open Source project. Thanks!