I'm working with an associative array where the key is the item's ID. For example, if the item has an ID of 104, then the object would be array[104] = {item.info};
However, when I output my array in the component, it displays values from 1-103, all of them null. How can I remove these and only show the values that are actually stored?
PHP and JavaScript handle associative arrays differently.
In JavaScript, you would use an object to achieve what PHP does with associative arrays. The key difference is that objects are not iterable while associative arrays are.
To illustrate the difference:
const data = []; // This is an array
data[10] = {
item: 1
};
console.log(data);Instead, in JavaScript, it should be handled like this:
const data = {}; // This is an object
data[10] = {
item: 1
};
console.log(data);When using json_encode() in PHP to convert associative arrays into JSON, remember that JSON does not support associative arrays either. It would look something like this:
$data = [
'10' => [
'item' => 1
]
];
echo json_encode($data);
// output => { "10": { "item": 1 } }
Take note of the syntax differences between objects and arrays in JavaScript and PHP.
An array does not contain key-value pairs; it only holds values. If you want to work with key-value data, you should use an object.
let item = {104: item.info}
Here is how you can access the value using an object:
item[104]
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