update()

in lib/index.js [157:163]

• 6 lines of code
• 1 McCabe index (conditional complexity)

  update(idx, delta) {
    this._checkIndex(idx);
    const freqCur = this._readSingle(idx);

    this._update(idx, delta);
    this._changed(freqCur, freqCur + delta);
  }