I am trying to loop through an object and get the values of the properties using two for loops. I get the output as expected, but was wondering if there is a better way to do this which would prevent using two for loops. Any suggestions? (thanks for the help earlier @cybercoder) Answer You can achieve this by concatenating the
Tag: ecmascript-6
Not able to drop element when creating dynamic divs to drag and drop element in
Following up on my previous question. It works perfectly. But when I dynamically create the divs where the li element is dropped in, I am not able to drop the element in it. I am using the basic HTML drag and drop feature. Why is the on drop working with dynamically created div? Here is my code: In my code,
To open the already opened tab using window.open() function without reloading the already opened tab
I was writing OnClick javascript code to open the new web page. Expectation: I want my to open the new page if that page is not already openend or open the already existing page without reload if that page is already opened. My code: window.open(url,’dialers’).focus(); This code always reloads the child page if already opened. Please help to achieve my
How to create a new data set depending on the values at certain array indexes?
I have an array that contains multiple objects and each object has an array called data that contains multiple data. For each data array that I have, how can I write a logic so that I store the values for each matching index into a new array data set. For example, I need to generate a new array which would
How to prevent user from entering negative number in react?
I want to restrict users from entering negative values. I am using min = “0”. With this i can restrict users from decrementing to 0, i.e, users can only decrement value till 0. But they are able to type “-“. How to prevent in react js. https://codesandbox.io/s/react-input-example-forked-xnvxm?file=/src/index.js Answer Handling Empty Input & Negative Numbers
How can I remove a specific index from an array and then insert a new one on that same index?
I am trying to do one thing but I have 2 choices Remove a specific item/index from an array and then insert a new one in that same index. Do not remove the item but edit it with new data. I have this piece of code: It removes the item from the array, but when it adds the new item,
how to dynamically calculate row span for the given array of objects to display table
the JSON data which I get from service has different key-value pair. below is the example data which I need to convert the data in a table in the frontend and the first column and second column values are rowspan. is it possible to get rowspan dynamically based on records? the data I have the code my output image enter
“use strict” does not work on ES6 using Visual Studio Code
In “use strict” mode, this in function should be [object Window] rather than the object that calls the function in regular mode. But when I’m trying to proof of concept, it doesn’t work, I’m wondering something’s wrong with the ES6 extension in Visual Studio Code but I don’t know how to figure it out. Can someone help me? 😐 Here’s
How to use strict mode and not get an error in JSlint
Looking at all the information out there on JSlint (eg. here or here), the discussion goes something like this Always use strict mode since it catches many more errors. All you have to do is put ‘use strict’ at the top of your code. That’s it! Couldn’t be easier… Except when JSlint complains and tells you to put it in
How to concataecance object array values of duplicates
I have an object that contains duplicate id properties and I want to reduce them to one array for each. I only figured out a way to find unique ids, but how can I concat the name attribute? Desired result: Answer Simple reduce to combine and using Object.values to get the result you are after.