javascript jQuery event.which 在 Enter 键按下时返回 13
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jQuery event.which returns 13 on Enter key press
提问by collimarco
Why event.which doesn't return 13 (CR) or 10 (LF) depending on the operating system?
为什么 event.which 不返回 13 (CR) 或 10 (LF) 取决于操作系统？
$('#something').on('keypress', function (event) {
switch (event.which) {
case 13:
...
break;
}
});
UPDATE
更新
I know that Carriage return is equal to 13 in ASCII code. But why Carriage return is common to all operating systems but produces different outputsin text (i.e. LF, CR, CR LF)?
我知道回车在 ASCII 代码中等于 13。但为什么回车对所有操作系统都是通用的，但在文本中产生不同的输出（即 LF、CR、CR LF）？
回答by gdoron is supporting Monica
Because that is the ASCII code for return...
因为那是返回的 ASCII 码...
The table:
桌子：
Look at number 13:
看数字13：
13 015 0D 00001101 CR

Carriage Return
13 015 0D 00001101 CR

回车
Read this:
读这个：
The actual codes representing a newline vary across operating systems, which can be a problem when exchanging text files between systems with different newline representations.
表示换行符的实际代码因操作系统而异，这在具有不同换行表示的系统之间交换文本文件时可能会出现问题。
Making the value fixed no matter which OS is being used, makes our life a lot easier and letting us focus on the real issues we need to do.
无论使用哪种操作系统，都将价值固定，让我们的生活更轻松，让我们专注于我们需要做的实际问题。
