Javascript：使用2个值分隔字符串

Question

I'm pretty new to javascript and i have following problem:

in an alert popup i'm getting back a variable with 2 values which are separated by ",".

alert example: 1,2

now i want to get this values separated so i get 2 different variables

value 1 = 1

value 2 = 2

when there is no value alert example: ,2 then it should look like this: value 1 = 0 value 2 = 2

Answer 1

Use split which will split the string into array using mentioned separator

expr1 || expr2 expr1 || expr2 => Returns expr1 if it can be converted to true; otherwise, returns expr2. Thus, when used with Boolean values, || returns true if either operand is true; if both are false, returns false.

 var data = ',2'; var splitted = data.split(','); alert(splitted[0] || 0); alert(splitted[1] || 0);