When i rewriting my old code, i had a problem i don’t know to to optimize this code in past i use switch,but now i know about Object literals, my code: How i can replace him with object literals? Answer You can write the cases as object literals and iterate over them:
Tag: object
Map array of an array to an object in JavaScript [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 1 year ago. Improve this question I’m trying to convert an array within an array that looks like this To an object that l…
Remove duplicated objects from array but also increase quantity
I have this list: And the output I’m looking for should look like: This code removes duplicates, but I just can’t figure it out how to increase quantity when duplicate is present. Answer Slightly different object approach that uses Object.values() to return resultant array
Can I destructure to multiple variables when at least one has already been declared, and at least one has not?
I’m aware that I can destructure an object or array to multiple variables, whether they are both already assigned or both unassigned, but is it possible to restructure to multiple variables together when at least one variable has already been declared, and at least one has not? 1. Both unassigned This w…
function.name returns empty string if the function is added to an object by property
Consider this code example: Why is there a difference between the name properties of these two functions? Answer The technical explanation: NamedEvaluation The specification tells you: 13.2.5.5 Runtime Semantics: PropertyDefinitionEvaluation PropertyDefinition : PropertyName : AssignmentExpression Let propKey…
How to add array to a specific object in a data?
Here how I’m trying to add some values to my data. The problem is that the tasks add as an object in the same level as parent’s object. Like this: However, I need it to be inside an object. Answer The listName looks to be the top level property, so use that to add another level:
How to fill missing dates inside array of object using javascript?
I want to fill this object from today’s date to next 7 days. Here is my object Expected output: Here is the code to generate array of dates from today to next 7 days How can I fill in the missing dates? Answer You can use this code to generate the dates array. You can pass the startDate and numberOfDays
Count items inside array of objects
I am using this code to fetch 100 trending public repos on GitHub. For every language, I calculated the The list of repos using the language, but I can’t calculate the number of repos using this language part of my code This is sample of my output My desired output is to count the URLs of each language …
How to get the first object of an array by condition?
I have a response: Response body: I receive an array with 5 objects. I want to set the variable for the first object within “type”: “Group”. attachment image. But I don’t know the way. Does anyone help me??? Answer What you’re looking for is .find which returns the first oc…
Convert values to percents based on two other values in array of objects
I have an array of objects: I want to convert val1 to percentages based on the date and device. So on 2018-01-01 if the device is iphone I want the vals to be for example: val1 to be 10%, 23% & 67% respectively. My code so far: While I am able to group the data by 2 keys, I am