Null keys cannot be eliminated from an array of objects in JSON as null is a valid value and represents the absence of a value. However, if you want to remove the entire object which contains a null key, you can do the following:
Here is an example code snippet in JavaScript:
var array = [
{ "name": "John", "age": null },
{ "name": "Jane", "age": 25 },
{ "name": "Bob", "age": null }
];
for (var i = 0; i < array.length; i++) {
if (array[i].age == null) {
array.splice(i, 1);
i--; // Since the array shifted down after removing an object
}
}
console.log(array); // Output: [{"name": "Jane", "age": 25}]
In this example, the null keys with the "age" property are removed from the array of objects.
Asked: 2022-09-12 11:00:00 +0000
Seen: 10 times
Last updated: May 25 '22