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#####   ####    #####   #   #   #   #   #   #   #  ####
##  #   ##      ##      ## ##    # #    #    # #   ##
##   #  ######  ##       ###      #    ###    #    ######

$ curl repovive.com/roadmaps/javascript/strings-numbers/startswith-and-endswith

░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░███████████████████████████████████████████████████████████████████████████████

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##  ##  ##      ##  ##  ## ##   #   #   #   #   #  ##
#####   ####    #####   #   #   #   #   #   #   #  ####
##  #   ##      ##      ## ##    # #    #    # #   ##
##   #  ######  ##       ###      #    ###    #    ######

$ curl repovive.com/roadmaps/javascript/strings-numbers/startswith-and-endswith

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startsWith and endsWith - Strings & Numbers | JavaScript | Repovive

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JavaScript22 sections · 783 units18h total

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startsWith and endsWith

Checking boundaries

Check how strings begin or end:

let filename = "report.pdf"
console.log(filename.startsWith("report"))  // true
console.log(filename.endsWith(".pdf"))      // true
console.log(filename.endsWith(".doc"))      // false

These are useful for validating formats:

if (url.startsWith("https://")) {
  console.log("Secure connection")
}