QuestenaÜben und erkennen, was als Nächstes dran ist
Frage 94

Which statements describe lexical name lookup in JavaScript? Select all that apply.

  1. A function searches the local variables of whichever function called it
  2. The current lexical environment is checked before an enclosing oneRichtige Antwort
  3. Property prototypes determine which lexical binding wins
  4. Lookup can continue through successively enclosing lexical environmentsRichtige Antwort

Erklärung

Name resolution starts in the current lexical environment and proceeds outward through the environments that enclose it. A caller's unrelated local scope is not inserted into that chain, so dynamic lookup based on who made the call is false.

Mit diesem Test weitermachen

Übung starten
Frage 94: Which statements describe lexical name lookup in… · JavaScript Fundamentals · Questena