JavaScript/Reserved words/instanceof

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The instanceof keyword[edit]

The instanceof keyword returns true, if the left-hand side of the operator corresponds to the class on the right-hand side.

Syntax[edit]

  object instanceof class

Examples[edit]

  theArray = new Array();
  if (theArray instanceof Array) {
    for (var i = 0; i < theArray.length; i++) {
      []
    }
  }
Previous: in Reserved words Next: int