javascript chop 2fslice 2ftrim off last character in string

1let str = "12345.00";
2str = str.substring(0, str.length - 1);
3console.log(str);

1//You can use the substring function:
2
3let str = "12345.00";
4str = str.substring(0, str.length - 1);
5console.log(str);
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9//This is the accepted answer, but as per the conversations below, the slice syntax is much clearer:
10
11let str = "12345.00";
12str = str.slice(0, -1); 
13console.log(str);