Syntax error JavaScript map() is not saving the new elements?

JavaScript map() is not saving the new elements?

Use the map() function correctly to save elements.

Example

Following is the code −

const addIndexValueToArrayElement = function (arrObject) {
   const updatedArrayValue = [];
   arrObject.forEach(function (ob) {
      const mapValue = ob.map(function (value) {
         return value + arrObject.indexOf(ob)
      })
      updatedArrayValue.push(mapValue)
   })
   return updatedArrayValue;
};
const output = addIndexValueToArrayElement([
   [4, 5],
   [7, 56],
   [34, 78],
]);
console.log(output);

To run the above program, you need to use the below command −

node fileName.js.

Here, my file name is demo323.js.

Output

This will produce the following output −

PS C:\Users\Amit\javascript-code> node demo323.js
[ [ 4, 5 ], [ 8, 57 ], [ 36, 80 ] ]
Updated on: 2020-10-27T09:55:09+05:30

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