{"conversations": [{"from": "human", "value": "Quin \u00e9s l'\u00fas de la funci\u00f3 NaN?"}, {"from": "gpt", "value": "La funci\u00f3 n Javascript \u00e9sNa() s' usa per a comprovar si qualsevol valor \u00e9s NN (que vol dir 'No- ne- Number') o no. Si el valor passat \u00e9s NN, la funci\u00f3 retorna veritable altra, retorna fals."}, {"from": "human", "value": "Em pots donar algunes mostres de com utilitzar aix\u00f2 i quan sigui \u00fatil?"}, {"from": "gpt", "value": ""}]}