Javascript 用jQuery中的新行替换结果集中的逗号
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Replacing commas in resultset with new line in jQuery
提问by Amidude
I have not had to do something like this in the past and am wondering if it is indeed possible. I am allowing multiple code numbers to be added in an so long as they are delimited by commas. What I am wanting to do is upon the user clicking on the "okay" button that a showing the numbers entered will show them one on top of each other with a "delete" button next to them. That part is easy...the hard part is getting the comma stripped out and the new line placed in its stead.
我过去不必做这样的事情，我想知道这是否确实可能。我允许添加多个代码编号，只要它们用逗号分隔即可。我想要做的是在用户单击“确定”按钮时，显示输入的数字将显示它们一个，并在它们旁边显示一个“删除”按钮。这部分很容易……困难的部分是去掉逗号并用新行代替它。
Are there any examples or samples that anyone can point me too?
是否有任何人也可以指点我的示例或样本？
回答by T.J. Crowder
You'd use String#replacewith a regular expressionusing the gflag ("global") for the "search" part, and a replacement string of your choosing (from your question, I'm not sure whether you want <br> — e.g., an HTML line break — or \nwhich really is a newline [but remember newlines are treated like spaces in HTML]). E.g.:
你会使用String#replace一个正则表达式使用g标志（“环球”）的“搜索”部分，和您所选择的替换字符串（从你的问题，我不知道你是否希望<br> -例如，HTML换行符— 或者\n哪个真的是换行符 [但请记住，换行符在 HTML 中被视为空格]）。例如：
var numbers = "1,2,3,4,5,6";
numbers = numbers.replace(/,/g, '<br>'); // Or \n, depending on your needs
Or if you want to allow for spaces, you'd put optional spaces either side of the comma in the regex:
或者，如果您想允许空格，您可以在正则表达式的逗号两侧添加可选空格：
var numbers = "1,2,3,4,5,6";
numbers = numbers.replace(/ *, */g, '<br>'); // Or \n, depending on your needs
回答by Alnitak
To replace alloccurrences of a string you need to use a regexp with the g(global) modifier:
要替换所有出现的字符串，您需要使用带有g（全局）修饰符的正则表达式：
var numlist = "1,4,6,7,3,34,34,634,34";
var numlistNewLine = numlist.replace(/,/g, '\n');
Alternatively, use .split()and .join()
或者，使用.split()和.join()
var newList = numList.split(',').join('\n');
回答by idrumgood
var numlist = "1,4,6,7,3,34,34,634,34";
var numlistNewLine = numlist.replace(',','\n');
No jQuery needed. Stringhas a nice replace()function for you.
不需要jQuery。String有一个很好的replace()功能给你。
