"DecNumber">3</span>
  <span class="Identifier">d</span><span class="Operator">.</span><span class="Identifier">add</span><span class="Punctuation">(</span><span class="FloatNumber">4.</span><span class="Identifier">toJs</span><span class="Punctuation">)</span>
  <span class="Identifier">d</span><span class="Operator">.</span><span class="Identifier">delete</span><span class="Punctuation">(</span><span class="FloatNumber">2.</span><span class="Identifier">toJs</span><span class="Punctuation">)</span>
  <spa