我有一个可变字符串短语,我想用变量中的内容删除字符串的开头,有或没有空格。
var fullphrase = "how can I trim this phrase?";
var cutthis = "how Can i";
var result = fullphrase.replace("/^cutthis ?/i","");
我希望结果为 = "trim this phrase?"
我怎样才能做到这一点?
最佳答案
为什么不将变量传递给替换参数?
var fullphrase = "how can I trim this phrase?";
var cutthis = "how Can i";
var result = fullphrase.replace(new RegExp("^" + cutthis + " ?", 'i'),"");
关于javascript - 如何简单地在正则表达式替换语句中传递变量?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22239518/