replace(str, map)

Replaces occurrences of keys in a string based on a mapping object.

Example:

          
            1compressor.replace("hello world", { hello: '$a', world: '$b' });2// "$a $b"
          
        

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Edge Cases & Notes:

• Supports Unicode words via \p{L} regex.
• Generates short keys using patterns like a, b, ..., z, aa, ab.
• Words shorter than minLength or below frequency threshold are ignored.
• Safe to use on strings without dictionary; returns original string unchanged if mapping is empty.

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