I have this array of objects from an api:

"use strict";

var data = [{
  "OPEN COVER (YES or NO)": "YES"
}, {
  "OPEN COVER (YES or NO)": "NO"
}, {
  "OPEN COVER (YES or NO)": "YES"
}];
var result = [];

data.map(function (item) {
  var fixed = {};
  var keys = Object.keys(item);
  keys.map(function (key) {
    if (key === 'OPEN COVER (YES or NO)') return fixed['open_cover'] = item[key];
  });
  result.push(fixed);
});
console.log(result);

I have this array of objects from an api:

"use strict";

var data = [{
  "OPEN COVER (YES or NO)": "YES"
}, {
  "OPEN COVER (YES or NO)": "NO"
}, {
  "OPEN COVER (YES or NO)": "YES"
}];
var result = [];

data.map(function (item) {
  var fixed = {};
  var keys = Object.keys(item);
  keys.map(function (key) {
    if (key === 'OPEN COVER (YES or NO)') return fixed['open_cover'] = item[key];
  });
  result.push(fixed);
});
console.log(result);

How do i change the value from "YES" to true and "NO" to true?

• javascript
• ecmascript-6

4 Answers 4

You can easily convert a 'YES' to true and 'NO' to false using a ternary. Also, you can use a forEach instead of a map:

"use strict";

var data = [{
  "OPEN COVER (YES or NO)": "YES"
}, {
  "OPEN COVER (YES or NO)": "NO"
}, {
  "OPEN COVER (YES or NO)": "YES"
}];
var result = data.reduce(function(items, item) {
  var fixed = {};
  var keys = Object.keys(item);
  keys.forEach(function(key) {
    if (key === 'OPEN COVER (YES or NO)') {
      return fixed['open_cover'] = item[key] === 'YES';
    }
  });
  items.push(fixed);
  return items;
}, []);
console.log(result);

If you could use ES6 features, use map to iterates and returns a new array, creating a new object with spread operator for each array item

"use strict";

var data = [{
  "OPEN COVER (YES or NO)": "YES"
}, {
  "OPEN COVER (YES or NO)": "NO"
}, {
  "OPEN COVER (YES or NO)": "YES"
}];

const key = 'OPEN COVER (YES or NO)';

const result = data.map( item => {

  return {
    ...item,
    ...{
        [key]: item[key] === 'YES'
    }
  }
});
console.log(result);

Working fiddle, based on Chase DeAnda's original answer https://jsfiddle/xctohpw5/

Or something like this, assuming that you will always have fixed key name "OPEN COVER (YES or NO)":

"use strict";

var data = [{
  "OPEN COVER (YES or NO)": "YES"
}, {
  "OPEN COVER (YES or NO)": "NO"
}, {
  "OPEN COVER (YES or NO)": "YES"
}];
var result = data.map(function (item) {
 var tempObj = {};
 var key = Object.keys(item)[0];
 var value = item[key] === 'YES';

 tempObj[key] = value;

 return tempObj;
});

console.log(result);

The easiest way to do this would be to set the value to a simple statement.

fixed['open_cover'] = item[key] === "YES"

This will check if item[key] is equal to "YES" and set your output to true or false.