Just need some help

[Shattered4k]

So im on a CodeCademy lesson for Java

I have to figure out this situation: You are a creature of habit. "Every week you buy 5 oranges. But orange prices keep changing!"

 

This is what i have so far and it comes out as "NaN"

var orangeCost = function (price) {console.log(5 * orangeCost);};orangeCost(5);

 i have no idea what im doing wrong

[Tigerbomb8]

// broken codevar orangeCost = function (price) {console.log(5 * orangeCost);};orangeCost(5);

// fixed codevar orangeCost = function (price) {console.log(5 * price);};orangeCost(5);

I can't work out how to explain what you did wrong right now maybe some else can

[CharlieH]

The fixes that have been posted above are correct, but since there's no explanation I'll jump in and try to fill that gap.

 

First up, which language you're learning. It may well have just been a typo, but there is a big difference between Java and JavaScript. Since the code you posted is JavaScript, and that Code Academy doesn't teach Java, I'll assume that's what you meant.

 

So, on to the code.

// First of all, you are assigning a function to the orangeCost variable,// asking for it to be passed a value to be named 'price'. This means// that price becomes a variable.var orangeCost = function (price) {    // On this line you are trying to multiply the function, orangeCost    // by 5. You could try and work this out on paper, too, but you    // wouldn't get very far, and neither would the JavaScript engine,    // so it instead returns NaN or 'Not a Number'.    console.log(5 * orangeCost);     // You can test that out with the next line, and you'll see 'function'    // be printed.    console.log(typeof orangeCost);     // The correct operation would be the following, as it is multiplies    // the price variable by 5.    console.log(5 * price);}; // Here you pass in the price, which gets assigned to the 'price'// variable up in your function.orangeCost(5);

 

Hopefully that all makes a little more sense now.

[Shattered4k]

Thanks for

 

// broken codevar orangeCost = function (price) {console.log(5 * orangeCost);};orangeCost(5);

// fixed codevar orangeCost = function (price) {console.log(5 * price);};orangeCost(5);

I can't work out how to explain what you did wrong right now maybe some else can

 

 

 

The fixes that have been posted above are correct, but since there's no explanation I'll jump in and try to fill that gap.

 

First up, which language you're learning. It may well have just been a typo, but there is a big difference between Java and JavaScript. Since the code you posted is JavaScript, and that Code Academy doesn't teach Java, I'll assume that's what you meant.

 

So, on to the code.

// First of all, you are assigning a function to the orangeCost variable,// asking for it to be passed a value to be named 'price'. This means// that price becomes a variable.var orangeCost = function (price) {    // On this line you are trying to multiply the function, orangeCost    // by 5. You could try and work this out on paper, too, but you    // wouldn't get very far, and neither would the JavaScript engine,    // so it instead returns NaN or 'Not a Number'.    console.log(5 * orangeCost);     // You can test that out with the next line, and you'll see 'function'    // be printed.    console.log(typeof orangeCost);     // The correct operation would be the following, as it is multiplies    // the price variable by 5.    console.log(5 * price);}; // Here you pass in the price, which gets assigned to the 'price'// variable up in your function.orangeCost(5);

Hopefully that all makes a little more sense now.

Thanks for both of your's help! I swore that i tried the (5 * price)