javascript push object to array without duplicates
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in javascript, you can push an object into an array without duplicates by first checking if the object already exists in the array before adding it. you can achieve this by using the `some()` method to check if the object already exists based on a specific property value.
here's a step-by-step tutorial on how to push an object into an array without duplicates:
1. create an array to store objects.
2. create a function that takes the array and the object you want to add as parameters.
3. use the `some()` method to check if the array already contains an object with the same property value.
4. if the object does not exist in the array, push the object into the array using the `push()` method.
below is an example code snippet to demonstrate how to push an object into an array without duplicates:
in this example, the `pushuniqueobject()` function checks if the `id` property of the object being added already exists in the array. if it doesn't exist, the object is pushed into the array. as a result, only unique objects are added to the `objectsarray`.
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