to check the value as string or numeric code example

Example 1: Use parseInt() in the convertToInteger function so it converts the input string str into an integer, and returns it.

function convertToInteger(str) {
  return parseInt(str);
}

Example 2: Modify the function increment by adding default parameters so that it will add 1 to number if value is not specified.

const increment = (number, value = 1) => number + value;
 
console.log(increment(5, 2)); // returns 7
console.log(increment(5)); // returns 6

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