incrementFrequency method

DftMapEntry incrementFrequency(
  1. String term
)

Returns a DftMapEntry with the key set to term.

If the term key exists in the DftMap, it's mapped value is incremented by 1.

If the term key does not exist in the DftMap, an entry is created and its value set to 1.

Implementation

DftMapEntry incrementFrequency(String term) =>
    setFrequency(term, getFrequency(term) + 1);