如何修改字符串内部字符，Javascript正则表达式

Question

如何修改：

var a = ' z this is ok z ';
a = a.replace(/z(.*)z/, function(match){ return match.trim().toUpperCase();});
console.log(a); // output: " Z THIS IS OK Z "

我希望“ZTHIS是OKZ”;

大写的工作，但忽略修剪功能

Answer 1

您将空格与(*)匹配。改为：

＆＃13;

＆＃13;

var a = ' z this is ok z ';

// Here, you'll notice that I added the spaces next to the "z" character.
a = a.replace(/z (.*?) z/, " Z$1Z ").toUpperCase();

console.log(a); // output: " ZTHIS IS OKZ "

＆＃13;

＆＃13;

＆＃13;

它的作用是匹配＆＃34; z＆＃34;之间的所有内容，然后用＆＃34; Z＆＃34;重写它。紧挨着它。