Questions about spread-syntax
Read more about spread-syntax
python (65.2k questions)
javascript (44.3k questions)
reactjs (22.7k questions)
java (20.8k questions)
c# (17.4k questions)
html (16.3k questions)
r (13.7k questions)
android (13k questions)
Can anyone explain "items.map((item) =>item.id === id ? { ...item, checked: !item.checked } : item"?
Can anyone explain "items.map((item) =>item.id === id ? { ...item, checked: !item.checked } : item"?
I just came up with this kind of example, don't know if it's correct.(if "onChang...
Junior
Votes: 0
Answers: 2
Render not reflecting changes in functional component after state update
In ReactJS, within a functional component I am able to get some data from the server, and set it to state. Once this happens though, it is not updating my rendered component. Is this related to the wa...
Chris
Votes: 0
Answers: 1
How can I automatically append a unique field to element of a referenced array every time a new element is added to the source array?
Here's a simple example of what I'm after:
/* source array in clues collection: */
clues = [
{ title: "Islero", answer: 5 },
{ title: "Miura", answer: 17 },
];
/* user collec...
shan_pritc
Votes: 0
Answers: 0
What does this Object.assign({}, ...array.map(/*...*/)) code do here
I have cloned this repo from github and I am unable to understand what's happening in the code.
words in the code is an array of words.
const wordDictionary = Object.assign({}, ...words.map((x) => ...
Usman Khan
Votes: 0
Answers: 1