The given HTML code includes two `` elements with different methods to insert a zero-width non-joiner character. Here's an explanation of each: 1. ` ‌ ` - This uses the HTML entity `‌` to insert a zero-width non-joiner character. - The zero-width non-joiner character is used to prevent two adjacent characters from being connected in writing systems that use ligatures. - It is commonly used in languages such as Arabic, where certain characters require special handling regarding ligatures. 2. ` ‍ ` - This uses the decimal representation of the zero-width non-joiner character (U+200D) to achieve the same result. - It is also a way to insert the zero-width non-joiner character directly using its Unicode code point. Both methods achieve the same goal of inserting a zero-width non-joiner character, but the second method using the numeric character reference (`‍`) is more explicit in specifying the character being inserted. Some developers may prefer using the numeric character reference method for clarity and to avoid potential encoding issues.