Hello,
How to return an array from a Javascript function ?
For eg: - function test()
-
{
-
var test1 = document.getElementsByName("textarea");
-
-
return test1;
-
}
Please correct the above code.
22  5816 
If you want an array of the textareas on the page, change getElementsByName to getElementsByTagName.
If you want an array of the textareas on the page, change getElementsByName to getElementsByTagName.
No I want to extract textareas which have a specific name.
Also tell me how to return associative arrays ?
Then replace "textarea" in your original code to the name of the textareas.
Then replace "textarea" in your original code to the name of the textareas.
That I am already doing .
Also tell me how to return an object.
For eg: - var obj = new Object();
-
obj["firstName"]=”vijay”;
-
obj["lastName"]=”khambalkar”;
If it's an array, use [] in place of "new Object()" and then after those statements, return obj; will return an array.
If it's an array, use [] in place of "new Object()" and then after those statements, return obj; will return an array.
No I want to know how to return associative arrays ?
What does the following do? - <html>
-
<head>
-
<script>
-
function test() {
-
var obj = [];
-
obj["firstName"]="vijay";
-
obj["lastName"]="khambalkar";
-
return obj;
-
}
-
</script>
-
</head>
-
<body>
-
<script>
-
var t = test();
-
document.write(t["firstName"]);
-
</script>
-
</body>
-
</html>
What does the following do?
- <html>
-
<head>
-
<script>
-
function test() {
-
var obj = [];
-
obj["firstName"]="vijay";
-
obj["lastName"]="khambalkar";
-
return obj;
-
}
-
</script>
-
</head>
-
<body>
-
<script>
-
var t = test();
-
document.write(t["firstName"]);
-
</script>
-
</body>
-
</html>
I want to send the array to a PHP file using Ajax.
How to read the array in PHP ?
I want to send the array to a PHP file using Ajax.
How to read the array in PHP ?
Now it makes more sense what you're trying to do.
Send it as a string with a unique delimiter and then split the string using that character with PHP.
Now it makes more sense what you're trying to do.
Send it as a string with a unique delimiter and then split the string using that character with PHP.
For sending it as a string I have to traverse through the array, take each value and concatenate it.
Is there any other way ?
Use the join() method to put all the elements of an array into a string.
Use the join() method to put all the elements of an array into a string.
But in that case will I get the keys also ?
Its an associative array.
Do you need the keys too?
Since it's an associative array/object, use a for...in loop: - var obj = new Object;
-
obj["whatever"] = "something";
-
...
-
var str = ""
-
for (var i in obj)
-
str+=obj[i] + ":";
-
Do you need the keys too?
Since it's an associative array/object, use a for...in loop:
- var obj = new Object;
-
obj["whatever"] = "something";
-
...
-
var str = ""
-
for (var i in obj)
-
str+=obj[i] + ":";
-
I know this way.
I wanted a way to return the associative array.
If you need the keys too, add them to the string too, e.g. - for (var i in obj) {
-
str += i + ":" + obj + "|";
-
}
- var aArray = new Array;
-
aArray['key'] = new Array;
-
aArray['value'] = new Array;
-
var key;
-
for(key in yourArray) {//yourArray is your original array
-
aArray['value'].push(yourArray[key]);
-
aArray['key'].push(key);
-
}
Hope you could utilize aArray
If you need the keys too, add them to the string too, e.g.
- for (var i in obj) {
-
str += i + ":" + obj + "|";
-
}
I don't want the values in a string.
I just want to return the associative array.
- var aArray = new Array;
-
aArray['key'] = new Array;
-
aArray['value'] = new Array;
-
var key;
-
for(key in yourArray) {//yourArray is your original array
-
aArray['value'].push(yourArray[key]);
-
aArray['key'].push(key);
-
}
Hope you could utilize aArray
You are creating two arrays.
I want a single associative array.
I don't want the values in a string.
I just want to return the associative array.
Tell me one thing first...
What is an associative array? - arr[0] = 'a'
-
arr[1] = 'b'
-
arr[2] = 'c'
-
arr[3] = 'd'
-
arr[4] = 'e'
If this is an array, what results do you want?
I don't want the values in a string.
I just want to return the associative array.
We already did that earlier with the return statement. I thought you wanted to pass this to a PHP script via Ajax.
Tell me one thing first...
What is an associative array? - arr[0] = 'a'
-
arr[1] = 'b'
-
arr[2] = 'c'
-
arr[3] = 'd'
-
arr[4] = 'e'
If this is an array, what results do you want?
Actually I want to send an associative array to a PHP file via Ajax without converting it to a string.
arr["asasa"] = 'a'
arr["wew"] = 'b'
arr["rtr"] = 'c'
Okey... if that is the case, you have to send it as a string only.
In PHP, you can use explode to convert your string back to an array.
Use what acoder suggested in post#16.
Then when your variables is received by your PHP script.
Use:[php]$your_final_array("key"=>array(), "value"=>array());
$your_array = explode(",", $_POST['your_array_string']); //or GET... which ever you using
foreach ($your_array as $each_value)
{
array_push($your_final_array['key'], strtok($each_value, ":"));
array_push($your_final_array['value'],strtok(":"));
}[/php]
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