Skip to content

Tag: javascript

Angular Http Subscribe not working

Hi In my Angular Component, i have this code in one of my methods In network tab in chrome dev inspector i saw that my get call returning result, but data is undefined. Why? Answer The reason it was not working originally, is because you had this: You are not returning a value. When you use the curly braces, …

ReactJS and Node — Error 400 bad request

I am trying to build a react application which saves data into database. I have the following classes: server.js and SaveNewCard.js But I got the following Bad Request 400 error: And: As I can understand, my request does not contain the inserted data… I assume the problem is here somewhere….: I le…

Checking for duplicate strings in JavaScript array

I have JS array with strings, for example: I need to compare for duplicate strings inside array, and if duplicate string exists, there should be alert box pointing to that string. I was trying to compare it with for loop, but I don’t know how to write code so that array checks its own strings for duplic…

Join two bounding boxes bboxes

I have two bounding boxes and want to create a big one that includes this 2 – join them. For example(2 results of the turf.bbox): Is there an easy way with turf etc.? thanks Answer Maybe this could be solved using a combination of bboxPolygon, combine and bbox. bboxPolygon converts a bounding box to a P…

404 page in REACT

I created the component NotFound and it works fine when I go to a page that doesn’t exist. But the same page it’s appearing in all my pages, not only the one that doesn’t exist. This is the component: And this is how I used it in the main page: As you can see I use <Route path=”*&#8…

Delete occurrences of an element if it occurs more than n times

i’m trying to create a function that gives me an array of numbers with a limitation of repetition for each number. for example should give me it deletes a [2] because the max repetition of numbers is 3. here is my code but i don’t know why it doesn’t work: Answer I would use a reduce to iter…