Let us say I have an object below and I have 2 variable. The length of the object is always fixed. I wanted to assign the object index attribute value to variable A and object index 1 to variable B. I can do like A = data[0].attributeValue; and B = data[1].attributeValue; but is there a better and clean way t…
Tag: javascript
Get summary number from only visible table rows
I have a code which counts a total summary of all price table cells. This is not exactly what do I need. I need to count the summary from only visible rows. I use filtering by date range, once I change date it displays only dates from the selected date range, but the summary price is from the all rows.
how to do two dependent drop down using javascript and html?
Second dropdown shows 0,1,2 instead of html,css,js Can u help how to display these (html,css,js) in code. I tried doing multiple things but couldnt get solution to this. Is it the mistake with html or the script involvced in it . I basically changed this from w3 schools three dropdown code to two, but it does…
Can you store js code on the fly in a variable and have js read it?
I’m not sure if what I’m trying to do is the correct/valid approach to what I’m trying to accomplish; essentially, I’m retrieving data from a db via an ajax call, I want this data to populate a js library where the layout is something like is there any way I can populate the code insid…
Why isn’t this function fast when we collect result from async call?
When I run the following piece of code it takes only 4 seconds for finding the latest job. Whereas, when I run the following piece of code it takes 15-16 seconds for finding the latest job. For this I uncomment the return recent; line of code in the last line of function foo and comment out the console.log(re…
How to loop over document.body in a function
I have to write a version of getElementsByClassName but i’m having trouble using document.body in my function. It only returns null when called. I realize that the recursion part needs to be fixed and finished but first I’d like to know how to access document.body (along with its childNodes) and u…
Is there a way to create an HTMLElement, which will delete itself later?
I have an abstract class “Component” Other classes extend this class. Is there a way to make render() return a this.container, which later will be deleted from DOM, i.e. after 5 seconds? Answer Have you tried using setTimeout?
Get properties from array of objects group by objects
Good day, I have an array artists[] of Proxy-objects. Proxy by themself also are arrays of objects (as I understood). Each of inner objects has property “artistName” (photo). Meanwhile third Proxy has two. I need to get smth like this: So, as result we get arrays of artist’s names grouped by…
Insert item between every other item in array similar to Array.join
Array.join is useful because it glues together an array of strings by a delimiter taking into account empty arrays and not padding the delimiter at either end of the output string. I am making a React application and I would like find a similar native function, however, my array of React.ReactNode elements is…
Change checkbox tickmark color
I’ve implemented a function to change the background color of my checkbox , but it makes the tickmark turns to color black which I don’t want , I want the mark to still white , how can I achieve this ? HTML :- here’s the function :- and here’s the output :- the background changed succe…