adding values to an array

colinod

I am trying to write an array that adda a number to the array on the click of a button, this is so i can send a series of numbers to a second page.

im just not sure how to do it???

never used arrays

Dormilich

I'm not aware that an array can write something to another array..... you probably mean function. you can use an array method (Array – MDC), e.g.

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your_array.push(new_value);

regards

colinod

what i need is the array to contain a series of numbers

i.e 123,234,345 etc

will the push function do this?

The idea is that the array holds the id for things on our site so you can click them as a favorite and then view all favorites from another page....a bit like a shopping cart

Dormilich

let me explain the push() method:

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 var my_array = [1,2];

// my_array now contains 1,2

alert(my_array.length); // 2

my_array.push(3);

// my_array now contains 1,2,3

alert(my_array.length); // 3

note: you know that numbers are not allowed for IDs?

regards

colinod

So i could do something like this

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var my_array = []; 

// my_array now contains nothing 

my_array.push(123); 

// my_array now contains 123

then if i wanted to add another number

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my_array.push(456); 

// my_array now contains 123,456

Is this correct???

Also would you know how to get the amount stored in the array item from an asp variable

eg the 123 or 456 to come from asp ID

Dormilich

@colinod
yes

@colinod
sorry, I can't help with ASP, you should ask in the ASP forum for help

colinod

thankyou for your help

Dormilich

I'm glad I could help.

colinod

I have got the array being populated with an asp variable but how can i get the page to display the content of my_array, i have tried

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<script language="javascript"> 

document.write(my_array); 

</script>

in the body of the page but get nothing displayed

Dormilich

you could try the Array.toString() or Array.toSource() method (see toString – MDC)

colinod

I dont think thats quite what im looking for, i need a way of taking each entry into the array and having it appear in the html on my page, its just so i can see if the array is holding all the information

Dormilich

well, that's what the functions do, show you the content (i.e. returning the content)

adding values to an array

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