I want to storage an array of objects in local storage but I just can storage one object into the array. All the new objects are overwriting the previous one in index 0. This is my JavaScript code: Thanks in advance!! Answer get the current content of the local storage first and then put the new objects into …
Tag: arrays
Find property value in array of objects (Javascript)
I have below array of objects. I want to check what errorCode value is present in objArray. Below is the solution that finds the key errorCode is present in an array of objects or not. If I do a console.log as shown below, I get the desired results. But I want to know what value of errorCode is present in
Using a for loop with a function in Javascript [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago. Improve this question I am having trouble figuring out how to solve this challenge below: Challe…
Function to pick N random items from array in Typescript
This is the code. Got the idea from this answer. Typescript playground I’m using the generic type parameter: T extends unknown[], since this function should work for any kind of array. But I’m getting the following error on the return statement: It goes away if I do a type assertion. But why is th…
Why is this first line not a function? [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 2 y…
Combining some() and startsWith() javascript
I have an array with strings: const fruits = [‘Apple’, ‘Banana’, ‘Orange’] I am trying to write a function that returns true or false depending on if a string starts with any string in the array, which would be true for example ‘Applepie’ or ‘Bananabread&#…
javascript Sum all item in array which match same key [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago. Improve this question I have a JSON like this: and i want to have an output like this: the outpu…
Build a tree array (3 dimensional) from a flat array in Typescript/Javascript
I have incoming data in this format: I want the output to be something like this: Basically, it is a three dimensional array with first level being the Countrie, second States and third Cities. I have tried the following code: But the above code works upto second level and does not add cities to states. Could…
How to display data dynamically with ant design tables
first please my javascript skill level is not good, but here… I have a table i got from ant.design, im trying to build a frontend with react, so I want to display some data on the table from my database but im finding it had because of the want ant design table is set up. This is the code Note
Javascript check if value exists in 2d array update else create
I’m creating a 2d array for a Google pie chart The array has to be in the format What I’m trying to get is a function where the category is passed to the function. If the category exists the value increments with 1 (value++). If it doesn’t, the record should be created with a value of 1. The…