Photo by Mohammad Rahmani on Unsplash
常數
| 變數 | 說明 |
|---|---|
| Infinity | 無限大 |
| -Infinity | 無限小 |
函式方法
| 變數 | 說明 |
|---|---|
| Number.parseInt() | 轉換為整數 |
| Number.parseFloat() | 轉換為浮點數 |
| Number.toFixed() | 固定小數點後面位數，位數不夠則捕 0 |
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