javascript 如何在jquery中用多个字符串作为分隔符分割一个字符串
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How split a string in jquery with multiple strings as separator
提问by SilverLight
i want to split a string in jquery or javascript with multiple separator.
for one string as separator we can have :
我想用多个分隔符在 jquery 或 javascript 中分割一个字符串。
对于一个字符串作为分隔符，我们可以有：
var x = "Name: John Doe\nAge: 30\nBirth Date: 12/12/1981";
var pieces = x.split("\n"), part;
for (var i = 0; i < pieces.length; i++) {
bla bla bla
}
But i want to split such that string(x) with : Age:and Date:(mean a string array as separator)
and at last i want a sting array with these parts : "Name: John Doe\n"," 30\nBirth "," 12/12/1981"
that x string is just an example and i dont have any string like that!
how can i rewrite theses codes?
但我想用 :Age:和Date:（意思是一个字符串数组作为分隔符）拆分字符串（x）
，最后我想要一个带有这些部分的字符串数组：“姓名：John Doe\n”、“30\nBirth”、“ 12/12/1981”
那个 x 字符串只是一个例子，我没有这样的字符串！我怎样才能重写这些代码？
回答by Denys Séguret
You can do
你可以做
var tokens = x.split(/Age:|Date:/g);
This gives 3 strings :
这给出了 3 个字符串：
["Name: John Doe
", " 30
Birth ", " 12/12/1981"]
If you want also to get the separators, use
如果您还想获得分隔符，请使用
var tokens = x.split(/(Age:|Date:)/g);
This gives 5 strings :
这给出了 5 个字符串：
["Name: John Doe
", "Age:", " 30
Birth ", "Date:", " 12/12/1981"]
If you want to build your regexp dynamically use
如果要动态构建正则表达式，请使用
var separators = ["Date:", "Age:"];
var tokens = x.split(new RegExp(separators.join('|'), 'g'));?????????????????
or
或者
var separators = ["Date:", "Age:"];
var tokens = x.split(new RegExp('('+separators.join('|')+')', 'g'));
回答by Travis Heeter
Here's a function based on one of @DenysSéguret's answers:
这是一个基于@DenysSéguret 答案之一的函数：
String.prototype.xSplit = function(separators){
return this
.split(new RegExp(separators.join('|'), 'g'))
.map(function(bar){ return bar.trim() }); // remove trailing spaces
}
Usage:
用法：
var foo = "Before date Date: between date & age Age: after age";
foo = foo.xSplit(???????????????["Date:", "Age:"]);
Outcome:
结果：
foo == ["Before date", "between date & age", "after age"]
