从javascript中的字符串中删除第二个逗号

Question

I have an string as:

0123456789,, 0987654213 ,, 0987334213,, ......

How can I convert this into

0123456789, 0987654213, 0987334213, ......

ie I want to remove the second comma

Answer 1

You can do it very simply, like this using regex.

var str = "0123456789,,0987654213,,0987334213,,,,,9874578";
str=str.replace(/,*,/g,',');
console.log(str)

Answer 2

var str = "0123456789,, 0987654213 ,, 0987334213,, ......"
console.log(str.replace(/\,+/g,","));

Answer 3

You can use replace() method with regular expression with g flag to replace all instances ',,' with ',':

str.replace(/,,/g, ",");

Here's a simple example

 var str = '0123456789,, 0987654213 ,, 0987334213'; str = str.replace(/,,/g, ","); console.log(str); 

Answer 4

这将用单个逗号替换所有出现的连续逗号：

str.replace(/,+/g, ',');

Answer 5

 var str = "0123456789,, 0987654213 ,, 0987334213,," str = str.split(",,").join(",") console.log(str); 

Answer 6

There is a replace method for String. You can replace ',,' with a ','.

An example:

var str = "0123456789,, 0987654213,, 0987334213,"; 
var newStr = str.replace(/,,/g,','));

The output:

0123456789, 0987654213, 0987334213,