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Tag: object

How to recalculate an object from a nested objects?

I have an object where Citems is an array of Object. Each object has status on or of and time. I want to generate an array or object from it that show total time for each status like below I tried with map and reduce but getting confused. Answer You just need a nested ‘sum’, here implemented using reduce() and

JavaScript Accessing literal object property

I’m trying to make this function that tells me which guitar I can purchased based on the budged. My issue is that I created a literal object and all outputs are giving the same answer (Except condition one) because I am trying to access the properties inside. What would be the best way to access the property that has the

Selecting an specific attribute from useState

With a React Class component i have the following state object as an example: when i want to make a function that gets an specific attribute from the state i can simply use Is there something equivalent when i use Hooks? Because i would have to write this Answer You can simply write your both arrays into one state: Now

Update array elements

I am trying to do something similar to a shopping cart, where initially there is a series of products that I load with an array of objects. I show the list of products with svelte like this: And through the function addProduct() I update the array inventory with the product id and the number of units of that product Where

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