javascript 正则表达式或 jquery 在特定字符后拆分字符串
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regex or jquery to split string after certain character
提问by Anjana Sharma
I have a string like this:
我有一个这样的字符串：
Franciscan St. Francis Health - Indianapolis
Franciscan St. Francis Health - 印第安纳波利斯
I need to extract everything after '-' including the dash itself and output it in the second line..How do I extract everything before '-'?? Regex or jquery?
我需要提取“-”之后的所有内容，包括破折号本身并将其输出到第二行..如何提取“-”之前的所有内容？正则表达式还是jquery？
The string infront of '-' will be dynamic and could have varying number of letters...
'-' 前面的字符串将是动态的，并且可能有不同数量的字母...
回答by maxedison
Neither. I would just use the native .split()function for strings:
两者都不。我只会.split()对字符串使用本机函数：
var myString = 'Franciscan St. Francis Health - Indianapolis';
var stringArray = myString.split('-');
//at this point stringArray equals: ['Franciscan St. Francis Health ', ' Indianapolis']
Once you've crated the stringArrayvariable, you can output the original string's pieces in whatever way you want, for example:
一旦你创建了stringArray变量，你可以以任何你想要的方式输出原始字符串的片段，例如：
alert('-' + stringArray[1]); //alerts "- Indianapolis"
Edit
To address a commenter's follow-up question: "What if the string after the hyphen has another hyphen in it"?
编辑
要解决评论者的后续问题：“如果连字符后面的字符串中有另一个连字符怎么办”？
In that case, you could do something like this:
在这种情况下，您可以执行以下操作：
var myString = 'Franciscan St. Francis Health - Indianapolis - IN';
var stringArray = myString.split('-');
//at this point stringArray equals: ['Franciscan St. Francis Health ', ' Indianapolis ', ' IN']
alert('-' + stringArray.slice(1).join('-')); //alerts "- Indianapolis - IN"
Both .slice()and .join()are native Arraymethods in JS, and join()is the opposite of the .split()method used earlier.
两个.slice()和.join()原产Array于JS的方法，和join()是的相反.split()方法之前使用。
回答by paislee
Regex or jquery?
正则表达式还是jquery？
False dichotomy. Use String.splitMDN
var tokens = 'Franciscan St. Francis Health - Indianapolis'.split('-');
var s = tokens.slice(1).join('-'); // account for '-'s in city name
alert('-' + s);
回答by gstroup
Probably no need for regex or jquery. This should do it:
可能不需要正则表达式或 jquery。这应该这样做：
var arr = 'Franciscan St. Francis Health - Wilkes-Barre'.split('-');
var firstLine = arr[0]
var secondLine = arr.slice(1).join('-');
Ideally, your data would be stored in two separate fields, so you don't have to worry about splitting strings for display.
理想情况下，您的数据将存储在两个单独的字段中，因此您不必担心拆分字符串以进行显示。
