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49–72 of 111 · Most stars

Performance-Bookmarklet helps to analyze the current page through the Resource Timing API, Navigation Timing API and User-Timing - requests by type, domain, load times, marks and more. Sort of a light live WebPageTest.

  • webperf
  • bookmarklet
  • navigation-timing
  • resource-timing

JavaScript/Node.js utility. Returns `true` if the value is a number or string number. Useful for checking regex match results, user input, parsed strings, etc.

  • number
  • is
  • isnan
  • javascript