javascript - 将 Javascript 键代码转换为 Char，反之亦然

Question

我正在研究 HTML 输入过滤，我遇到以下情况:

我需要将 keyCodes 转换为字符，但是当我处理数字键盘键时，我得到了奇怪的结果:

String.fromCharCode(96) //should be 0 but I recieve "`"
String.fromCharCode(97) //should be 1 but I recieve "a"
String.fromCharCode(98) //should be 2 but I receive "b"
String.fromCharCode(99) //should be 3 but I recieve "c"
String.fromCharCode(100) //should be 4 but I recieve "d"
String.fromCharCode(101) //should be 5 but I recieve "e"
String.fromCharCode(102) //should be 6 but I recieve "f"
String.fromCharCode(103) //should be 7 but I recieve "g"

从文档和事件调试中我可以看到以下映射:

numpad 0    96
numpad 1    97
numpad 2    98
numpad 3    99
numpad 4    100
numpad 5    101
numpad 6    102
numpad 7    103 

链接:https://www.cambiaresearch.com/articles/15/javascript-char-codes-key-codes

我在这里缺少什么？

Answer 1

使用ASCII表获取字符代码。