Hey there, I have a tricky problem to solve.
I am trying to extract a value from an array that's inside an object.
$scope.document=[]
$scope.accounts=[{name:"123"},{name:"124"},{name:"125"}]
My goal is to take the first array element and append it to $scope.document. I need to accomplish this using a loop.
Ultimately, I want to check if $scope.document contains the name "123" and perform a certain action, and if $scope.accounts contains the name "124" then do something else.
Although the first empty array may seem unrelated, the key is to focus on iterating through the second array and analyzing each value individually. Here is an example of how you can achieve this:
$scope.items.forEach(function(item) {
switch (item.id) {
case 123:
//Perform actions when item.id is 123
//For example, add this item to a different array:
$scope.newArray.push(item);
break;
case 124:
//Perform actions when item.id is 124
break;
default:
//Perform actions for other values
break;
}
});
Check out this example that demonstrates the use of basic JavaScript:
let items = [],
products = [{ name: 'A' }, { name: 'B' }, { name: 'C' }];
let item = search(products, function(obj) { return obj.name === 'A'; });
if (item) items.push(item);
function search(array, condition) {
for (let i = 0; i < array.length; i++)
if (condition(array[i])) { return array[i]; break; }
}
https://codepen.io/examples/5421/
You have the freedom to implement any custom logic once you find an object in the array. In this demonstration, I am simply appending it to the 'items' array.
If you prefer to utilize some of the predefined methods available in the Array object, explore this alternative approach:
function search(array, property, value) {
let idx = products.map(function(obj) { return obj[property]; }).indexOf(value);
return array[idx];
}
It's important to consider browser compatibility when implementing such functionality.
Alternatively, you can leverage a utility library like Lodash that provides comprehensive tools for these types of tasks.
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