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JavaScript

Posted by Jeff Busch
Jeff Busch
19,287 Points

Passing arguments to a function

my_array.sort(function(a, b) {
    return a - b;
});

Typically when an argument is passed to a function it is done explicitly when the function is called. Am I to assume that in the code above javascript is passing arguments implicitly from the array? And it is being done two values at a time in their respective order?

Thanks Jeff

2 Answers

Aaron McMasters
Aaron McMasters
1,951 Points
Aaron McMasters
Aaron McMasters
1,951 Points

You do not have an array - which would be [a,b,c,d]

edit - oh i see, nice.

Christopher Peters
Christopher Peters
1,927 Points
Christopher Peters
Christopher Peters
1,927 Points

Jeff Busch,

I use javascript console.log() all the time to figure out JS problems.

[1, 3, 2, 4].sort(function(a, b) { console.log("a is: " + a + " and b is: " + b + ", so a - b is: " + (a-b)); } );

Put that through the console and you'll see the answer. Yes, array items are passed successively to the javascript function(a, b).