ActionScript 3：删除更改字符串的一部分

Question

I understand how to delete part of a string from following this example

Deleting strings

But the problem is my string is constantly changing.

str is giving back a value of: 80.30000 this changes depending on the value selected. What I'm trying to is remove all of the characters after the . so it should look like this.

str = 80

the string value is currently stored in str '80.30000'

Any suggestions ?

Answer 1

Strings have functions like indexOf . So, in order to get the position of the character . you can do the following.

var str:String = "80.30000";
var indexOfPoint:int = str.indexOf(".");
if(indexOfPoint >= 0)
{
    //the string contains at least one . character
    str = str.substring(0, indexOfPoint);
    //now str holds only the String "80"
}

Documentation for substring(int,int)

Answer 2

最好的答案可能已经给出，但是如果您将数字用于任何数学运算，则替代方法可能是将String转换为Float，Math.floor（）float（应该为您提供一个整数），然后如果需要，将其转换回字符串。