Javascript 如何获得位于 2 个引号之间的子字符串？
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How can I get a substring located between 2 quotes?
提问by Phil
I have a string that looks like this: "the word you need is 'hello' ".
我有一个看起来像这样的字符串：“你需要的词是‘你好’”。
What's the best way to put 'hello' (but without the quotes) into a javascript variable? I imagine that the way to do this is with regex (which I know very little about) ?
将 'hello' （但不带引号）放入 javascript 变量的最佳方法是什么？我想这样做的方法是使用正则表达式（我知之甚少）？
Any help appreciated!
任何帮助表示赞赏！
回答by Jo?o Silva
回答by F0G
var mystring = "the word you need is 'hello'"
var matches = mystring.match(/\'(.*?)\'/); //returns array
?alert(matches[1]);?
回答by Beetroot-Beetroot
If you want to avoid regular expressions then you can use .split("'")to split the string at single quotes , then use jquery.map()to return just the odd indexed substrings, ie. an array of all single-quoted substrings.
如果您想避免使用正则表达式，则可以使用.split("'")单引号拆分字符串，然后使用jquery.map()仅返回奇数索引子字符串，即。所有单引号子串的数组。
var str = "the word you need is 'hello'";
var singleQuoted = $.map(str.split("'"), function(substr, i) {
return (i % 2) ? substr : null;
});
CAUTION
警告
This and other methods will get it wrong if one or more apostrophes (same as single quote) appear in the original string.
如果原始字符串中出现一个或多个撇号（与单引号相同），则此方法和其他方法都会出错。
