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Tag: arrays
JavaScript array Sort out! Indices problem
Given an array A of non-negative integers of size m. Your task is to sort the array in non-decreasing order and print out the original indices of the new sorted array. e.g.A={4,5,3,7,1} After sorting the new array becomes A={1,3,4,5,7}. The required output should be “4 2 0 1 3” Answer You need to …
How to sort an array with special conditions
I just want to return an array containing the first and second objects based on the “point” property of an object and I have a condition below, When the condition is satisfied it will swap places. Given the following object: the result I want is Answer You could group the data with an object for t…
How do I check & return an error message if an array is undefined?
I am writing a ternary statement that prints out the certification of a movie (IE. PG, R…). I am trying to return an error message that says “No Certification Available For This Movie” if the length of the array is equal to zero and if it is undefined. I managed to print the error message to…
How could I sum a property of each object for separate object arrays?
I had an object which in it had objects which each had an array of objects with 0..n objects. The main object looked something like this: Each object (obj1, obj2 and obj3) held a group of common objects in an array of objects. E.g. obj1 has a group of objects in an object array (obj1.1, obj1.2 and obj1.3) all…
How can i add more elements in my object in ReactJS?
Hi i need to add a new elements in my object in react but the method is not work here is my code ] Answer with class component :
How can I extract from an array of arrays all the arrays that have the same value in their first field?
The following function elegantly finds duplicates in 1-dimensional arrays: When I send it (for example) this array [‘123456’, ‘787877’, ‘763223’, ‘787877’, ‘854544’] it returns [‘787877’]. What I need is something similar that works for a…
Different behavior when extend natives class with constructor and passing arguments to super
Different behavior calling a constructor and without calling it, when creating an instance of an inherited class: 1Case when I pass constructor: 2Case when it happens automatically There are different behavior Please tell me what is the difference, and why is this behavior observed? Answer In a subclass, the …
why isnt javascript ‘For’ statement working in array?
i have a script that creates an array of words from a sencence and then capitalises each letter i am getting sintax errors whenever i run the script. Here is all of the JavaScript that is related to the input and output boxes. the error is for the i in addressArray[i] and the townArray[i] i feel like it is st…
How can i reduce to a more concise form my JS array
There is the following piece of code that I would like to reduce to a more concise form. I think I did not make the best decision at all. Simultaneously getting rid of the bug, which consists in limiting the operation of the program from arrays prescribed in advance in the code. Please tell me how it can be d…