通过新行(包括空行)将textarea中的文本拆分为javascript数组

Question

我正在尝试将文本拆分为拆分textarea数据的新行.我的当前代码有效,除了一个小要求:结果数组也必须包含空行.

<script>
$(function(){
    var lines = [];
    $.each($('#data').val().split(/\n/), function(i, line){
        if(line){
            lines.push(line);
        }
    });
    console.log(lines);
});
</script>


<textarea id="data">
I like to eat icecream. Dogs are fast.

The previous line is composed by spaces only.



The last 3 lines are empty.

One last line.
</textarea>

目前的结果是:

["我喜欢吃冰淇淋.狗很快.","","前一行仅由空格组成.","最后3行是空的.","最后一行."]

应该是什么:

["我喜欢吃冰淇淋.狗很快.","","前一行仅由空格组成.","","","","最后3行是空的.","" ,"最后一行."]

Answer 1

除了 geedubb 的答案之外，如果您出于编码原因希望避免使用反斜杠：

var lines = $('#data').val().split(String.fromCharCode(10));

Answer 2

你的.split意志包括\n,但是当它line是假的你可以推空字符串......

$(function(){
    var lines = [];
    $.each($('#data').val().split(/\n/), function(i, line){
        if(line){
            lines.push(line);
        } else {
            lines.push("");
        }
    });
    console.log(lines);
});

这是一个工作示例:JSFiddle

输出:

["I like to eat icecream. Dogs are fast.", 
"",  "The previous line is composed by spaces only.",  
"",  "",  "", 
"The last 3 lines are empty.",  
"",  "One last line."]

或者只是如上面的评论所示(我假设您的示例已经简化,您需要在.each循环中执行其他操作):

var lines = $('#data').val().split(/\n/);

JS小提琴