Append datatypes in array of dictionary (javascript)

Question

i have array1 form of array and I want to convert it in order to be like array2

const array1 = [
  {name:'sds',long:'23',lat:'22'}, 
  {name:'sdsd',long:'33',lat:'55'}, 
  {name:'sds',long:'44',lat:'66'}
];

const array2 = [
  {name:'sds',long:23,lat:22}, 
  {name:'sdsd',long:33,lat:55}, 
  {name:'sds',long:44,lat:66}
];

basically, I want to change the datatype of longitude and latitude**(java script** ) please If u know do tell me

yes i have to use it by using foreach loop but it didn't work — R.K raffay, May 20 '21 at 15:13
foreach is a good start, what didn't work though? Can you show what you did? — Fusei, May 20 '21 at 15:16
oky so i have take an empty array and tried to append the values — R.K raffay, May 20 '21 at 15:19

DecPK · Accepted Answer · 2021-05-20T15:23:34.787

2

Just map over the array and convert string to Number, by appending + to String type will make String type to Number type.

array1.map(({ name, long, lat }) => ({ name, long: +long, lat: +lat }));

const array1 = [
  { name: "sds", long: "23", lat: "22" },
  { name: "sdsd", long: "33", lat: "55" },
  { name: "sds", long: "44", lat: "66" },
];

const result = array1.map(({ name, long, lat }) => ({ name, long: +long, lat: +lat }));
console.log(result);

edited May 20 '21 at 15:23

answered May 20 '21 at 15:19

DecPK

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I like this answer the best. Wht does `+long` do actually? – Sid May 20 '21 at 15:21
https://stackoverflow.com/questions/1133770/how-to-convert-a-string-to-an-integer-in-javascript – DecPK May 20 '21 at 15:23

score 1 · Answer 2 · answered May 20 '21 at 15:17

A crude and brute force way is:

const array1 = [
  {name:'sds',long:'23',lat:'22'}, 
  {name:'sdsd',long:'33',lat:'55'}, 
  {name:'sds',long:'44',lat:'66'}
];


const x  = array1.map(y => {
    // console.log(y);
    y.long = parseInt(y.long);
    y.lat = parseInt(y.lat);
    return y; 
});

console.log(x);

Output will be as expected. It basically maps each item and does the parsing.

score 1 · Answer 3 · answered May 20 '21 at 15:19

Brother, you can try this. Hope this will help you. Thanks.

const array1 = [
  {name:'sds',long:'23',lat:'22'}, 
  {name:'sdsd',long:'33',lat:'55'}, 
  {name:'sds',long:'44',lat:'66'}
];

const array2 = array1.map(item => ({
  name: item.name,
  long: parseInt(item.long),
  lat: parseInt(item.lat),
}));

console.log(array2)

Append datatypes in array of dictionary (javascript)

3 Answers3