How to Use String.split() to Extract Numeric Values in JavaScript?

How can I use String.split() in JavaScript to retrieve numeric values from a string?

const str = '12, 15, 25, 30';

The String.split() method in JavaScript can be a powerful tool for parsing strings and extracting numeric values. By utilizing the delimiter appropriately, you can convert a string of numbers into an array of numerical values for further manipulation or calculation.

const str = '12, 15, 25, 30';
const numbers = str.split(', ').map(Number); // [12, 15, 25, 30]

Causes

• The input string contains numeric values separated by a specific delimiter (e.g., commas, spaces).
• You need to convert these string representations of numbers into actual numerical values.

Solutions

• Use String.split() to separate the numeric values based on the specified delimiter.
• Use the map() function to convert the resulting array of strings into an array of numbers.

Mistake: Forgetting to convert string values to numbers after splitting.

Solution: Use the `map(Number)` method to convert each string in the array to a number.

Mistake: Not using the correct delimiter in the split() method.

Solution: Ensure that the delimiter in the split() method matches what is used in the input string.