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JavaScript

Majid Mokhtari
Majid Mokhtari
10,506 Points
Posted by Majid Mokhtari
Majid Mokhtari
10,506 Points

call and apply

The question asks: Set the 'greeting' variable, on line 29, by using the 'genericGreet' function in the context of 'andrew' with the array of arguments, 'args1'.

I used apply method, but it shows incorrect. Anybody knows where I made mistake?

<!DOCTYPE html> <html lang="en"> <head> <title> JavaScript Foundations: Objects</title> <style> html { background: #FAFAFA; font-family: sans-serif; } </style> </head> <body> <h1>JavaScript Foundations</h1> <h2>Objects: Call and Apply</h2> <script> var genericGreet = function(name, mood) { name = name || "you"; mood = mood || "good"; return "Hello " + name + ", my name is " + this.name + " and I am in a " + mood + " mood!"; }

  var andrew = {
    name: "Andrew"
  }

  var args1 = ["Michael", "awesome", ":)"];

  var greeting = genericGreet; greeting.apply(andrew, args1)
</script>

</body> </html>

2 Answers

Andrew Kiernan
Andrew Kiernan
26,892 Points
Andrew Kiernan
Andrew Kiernan
26,892 Points

Hi Majid!

I'm just going by the instructions you provided, so I'm not entirely sure, but I believe the issue here is that you used 2 commands to set apply() to the greeting variable, first setting it to genericGreet, then to apply() your arguments. Try combining the two into: 

var greeting = genericGreet.apply(andrew, args1);

And I believe it should work.