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Now that we've seen call let's take a look at apply.

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Remember that the only difference between these two is when we have arguments to the function that we're

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using call or apply on in the previous example with the same high method.

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It didn't matter if we use call or apply We only start to see a difference when we start adding arguments

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.

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Let's take a look at the add numbers function to illustrate this point.

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Here we are concatenating the value of the first name property with the string just calculated and the

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sum of four numbers which are parameters to the Add numbers function when we call Coltart add numbers

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.

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This function behaves like we want it to.

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Since the keyword this refers to the cold object if we want to borrow the add numbers function from

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Colt and set the keyword this to refer to the elhi object we can use call or apply in order to pass

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arguments to the function using call.

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We separate them with a comma.

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So you can see here that when we use call the arguments we pass one to three and four are separated

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by a comma.

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In the case of apply we pass all of the arguments as values in an array.

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So it looks very similar to call but instead of comma separated values as arguments we put them all

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inside of one array.

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We'll see in a later video why this might be valuable in the next video.

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We're going to talk a bit more about bind and see just how helpful it can be when working with asynchronous

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code.

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See you then.