How will you find number of characters in the Javascript string text given below?
let text = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

The correct answer is Option 4) let length = text.length;.

Key Points

• In JavaScript, length is a built-in property used to find the number of characters in a string or the number of elements in an array.
• To find the length of a string, you can use the syntax: string.length.
• Given the code: let text = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";, the correct way to get the number of characters is:
  let length = text.length;
• This returns 26 because the string contains all 26 uppercase letters of the English alphabet.

Additional Information

• len() and strlen() are functions used in Python and C respectively, not JavaScript.
• Option 2 assumes the string always has 26 characters, which may not always be true. You should calculate length dynamically using .length.
• This property is extremely useful when performing string validations, slicing, or loops based on string size.

Conclusion: text.length is the correct and standard way to determine the number of characters in a JavaScript string.