3 posts for 'Spread Operator'

Create new JSON entries conditionally

#JavaScript #JSON #Spread Operator

var obj = {
  title: "hello"
};

var upperCase = true;

var newObj = {
  ...obj,
  ...(upperCase && {
    title: "HELLO"
  })
};

Use forEach with any iterable using spread operator

#JavaScript #Spread Operator

var map = new Map();

[...map].forEach(() => {});

Extract selected entries from JSONs

#JavaScript #JSON #Spread Operator

var item = {
  id: "1",
  title: "Something",
  price: "100"
};

const { id, ...itemDetails } = item;

//id -> 1
// itemDetails -> {title:"Something", price:"100"}

"The only thing I know is that I know nothing" - Socrates