Build a function forLoop. It takes an array as an argument. Start counting from 0, and, using a for loop, add a string to the array 25 times. But not just any string. If your i value is 1, add the string “I am 1 strange loop.”; if your i value is anything else, add the string “I am ${i}
Tag: arrays
comparing one dictionary with array of dictionary
I want to add or remove a dictionary on the array based on two cases. For example, Let us create a array of dictionary, Let us consider two cases, Case-1: An input dictionary that has both the same key and value which is in the Result variable. then the result should be, Case-2: An input dictionary that has t…
How can I filter nested objects and arrays with JavaScript?
My use case is something like this. I have an array that has an object. That each object has an array called menu Again that menu array has objected. That each object has an array dish_has_categories In dish_has_categories array, if there is an object with CategoryId is equal to 8 I want to filter out that ro…
How to push new elements to an array with undefined index in JavaScript
I want to create array once and then just push values to it with any index , but i get Cannot read property ‘push’ of undefined error I have following scenario I want to use push randomly with any index or right now I want to define manually like neg[0] = []; , Is there any one way where i
How to compare a string with a value of an object in an array
I want to check if a string matches another string in an array of objects. Here’s my code Answer Since you’re clearly already using ES6, the most idiomatic way is using Array.includes after mapping the array:
Filter Object Array 1 on the basis on 2nd Object Array in Javascript(UnderscoreJS)
I wanted to filter Object Array 1 if it’s object value not exist in 2nd object Array. Non-Intersected values from 2nd array But the result is using this code is wrong. please help me here Answer Here is a solution based on underscore. b.id !== a.group -> a.id !== b.group to match your objects’ …
Dynamically get values of object from array
Let’s say I have an Object myBook and an array allCategories. What I want : Loop over categories to check the value of Book, for example, check if “sciencefiction” exists in my Book Object and then check it’s value What I have tried : 1) With indexOf 2) With includes Expected output : …
Organize duplicates into individual array that is ordered
I have an array with numbers. I would like to put the numbers in order and create new array with duplicats in the same array(array in array). Can someone please help me step by step. I would really like to understand Answer You can extract unique values using Set, then sort them (because sorting an array of a…
Compare and Filter Object Array in javascript
How to determine the cheapest and fastest rate and get the value in single object. cheapest is determined by using netfee having least value fastest is determined by using speed having less days best is determined by using amount having highest value I got stuck and let know is any alternative solution. Answe…
Return subset of JSON Object using Javascript map() function
My question is if there is a simple way to return a subset of JSON object that will contain all ‘columns’ rather than specifying individually which ‘columns’ to return. In particular, I have a multi-column csv file converted to JSON. The function below returns a subset of that object &…