Javascript 如何获取两个字符之间的文本？
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How to get text between two characters?
提问by Ella
|text to get| Other text.... migh have "|"'s ...
|text to get| Other text.... migh have "|"'s ...
How can I get the text to getstuff from the string (and remove it)?
如何text to get从字符串中获取内容（并将其删除）？
It should be just the first match
这应该只是第一场比赛
回答by reader_1000
var test_str = "|text to get| Other text.... migh have \"|\"'s ...";
var start_pos = test_str.indexOf('|') + 1;
var end_pos = test_str.indexOf('|',start_pos);
var text_to_get = test_str.substring(start_pos,end_pos)
alert(text_to_get);
回答by Lightness Races in Orbit
You don't need a regular expression for this; firing up the regex engine is completely overkill for such a simple task.
您不需要为此使用正则表达式；对于这样一个简单的任务来说，启动正则表达式引擎是完全矫枉过正的。
Just use basic string manipulation:
只需使用基本的字符串操作：
function getSubStr(str, delim) {
var a = str.indexOf(delim);
if (a == -1)
return '';
var b = str.indexOf(delim, a+1);
if (b == -1)
return '';
return str.substr(a+1, b-a-1);
// ^ ^- length = gap between delimiters
// |- start = just after the first delimiter
}
print(getSubStr('|text to get| Other text.... migh have "|"s ...', '|'));
// Output: text to get
Live demo.
现场演示。
回答by Alex Turpin
To get it:
为拿到它，为实现它：
"|text to get| Other text.... migh have \"|\"'s ...".match(/\|(.*?)\|/)
To remove it:
要删除它：
"|text to get| Other text.... migh have \"|\"'s ...".replace(/\|(.*?)\|/, "")
I'm not theexpert on Regex so if someone has improvements, please edit.
我不是正则表达式的专家，所以如果有人有改进，请编辑。
回答by Arnaud Le Blanc
string = '|text to get| Other text.... migh have "|"\'s ...';
string = string.replace(/^\|[^|]*\|/, '');
回答by Joseph Silber
You'll have to get the text you want by using match, then run replacewith it:
您必须使用 获取所需的文本match，然后replace使用它运行：
var text = "|text to get| Other text.... migh have \"|\"'s ...";
text.replace(text.match(/\|([^|]*)\|/)[1], "");
回答by rapidfyre
you should look up the following functions:
您应该查找以下函数：
split()
substr()
Depending on how you want to solve your task either can be used.
根据您想如何解决您的任务，可以使用任何一种。
