I'm probably doing something very stupid but I can't get following regexp to work in Javascript:
我可能在做一些非常愚蠢的事情，但是我不能按照regexp使用Javascript:
pathCode.replace(new RegExp("\/\/.*$","g"), "");
I want to remove // plus all after the 2 slashes.
我想删除// +所有后的两个斜杠。
3 个解决方案
#1
10
Seems to work for me:
似乎为我工作:
var str = "something //here is something more";
console.log(str.replace(new RegExp("\/\/.*$","g"), ""));
// console.log(str.replace(/\/\/.*$/g, "")); will also work
Also note that the regular-expression literal /\/\/.*$/g is equivalent to the regular-expression generated by your use of the RegExp object. In this case, using the literal is less verbose and might be preferable.
还要注意，正则表达式的文字/\/\/。*$/g等于您使用RegExp对象生成的正则表达式。在这种情况下，使用文字比较不冗长，可能更好。
Are you reassigning the return value of replace into pathCode?
是否将replace的返回值重新分配到路径码?
pathCode = pathCode.replace(new RegExp("\/\/.*$","g"), "");
replace doesn't modify the string object that it works on. Instead, it returns a value.
replace不会修改它所使用的字符串对象。相反，它返回一个值。
#2
2
This works fine for me:
这对我来说很好:
var str = "abc//test";
str = str.replace(/\/\/.*$/g, '');
alert( str ); // alerts abc
#3
1
a = a.replace(/\/\/.*$/, "");
#1
10
Seems to work for me:
似乎为我工作:
var str = "something //here is something more";
console.log(str.replace(new RegExp("\/\/.*$","g"), ""));
// console.log(str.replace(/\/\/.*$/g, "")); will also work
Also note that the regular-expression literal /\/\/.*$/g is equivalent to the regular-expression generated by your use of the RegExp object. In this case, using the literal is less verbose and might be preferable.
还要注意，正则表达式的文字/\/\/。*$/g等于您使用RegExp对象生成的正则表达式。在这种情况下，使用文字比较不冗长，可能更好。
Are you reassigning the return value of replace into pathCode?
是否将replace的返回值重新分配到路径码?
pathCode = pathCode.replace(new RegExp("\/\/.*$","g"), "");
replace doesn't modify the string object that it works on. Instead, it returns a value.
replace不会修改它所使用的字符串对象。相反，它返回一个值。
#2
2
This works fine for me:
这对我来说很好:
var str = "abc//test";
str = str.replace(/\/\/.*$/g, '');
alert( str ); // alerts abc
#3
1
a = a.replace(/\/\/.*$/, "");