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String Length

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Ever looked at a block of text and wondered: "How many characters is this?". That’s the core of String Length! You’re given a string s, and your simple mission is to return the total number of characters (including spaces and symbols) that it contains.

The "secret sauce" here is Metadata. In most programming languages, strings are objects that already know how long they are! Whether you use len() in Python or .length in JavaScript, the computer provides this answer instantly. Think of it like a ruler: you aren''t counting the lines by hand; the ruler just tells you the measurement. It’s a basic, constant-time O(1) operation that forms the foundation for data validation and text limits.

This is one of the most common tasks you’ll perform as a developer. Whether you''re limiting a username length or checking for empty inputs, mastering this property is the absolute first step in string manipulation!

For text and token tasks, be precise with index movement and substring boundaries. Most hidden failures come from partial-match handling and boundary cuts, so keep comparisons explicit and avoid assumptions about implicit separators or formatting not guaranteed by the input contract.

Examples

Example 1
Input
s = "hello"
Output
5
Explanation

Example 1: "hello" has 5 characters

Example 2
Input
s = ""
Output
0
Explanation

Example 2: Empty string has length 0

Example 3
Input
s = "world"
Output
5
Explanation

Example 3: "world" has 5 characters

Algorithm Flow

Recommendation Algorithm Flow for String Length - Budibadu
Recommendation Algorithm Flow for String Length - Budibadu

Best Answers

java
class Solution {
    public int get_length(String s) {
        return s.length();
    }
}