Javascript implements three methods for string inversion
- 2020-03-29 23:57:31
- OfStack
The first way
The second method:
The third method:
var str = "abcdef";
console.log( str.split("").reverse().join("") ) ;
The second method:
var str="abcdef"
var i=str.length;
i=i-1;
for (var x = i; x >=0; x--)
{
document.write(str.charAt(x));
}
The third method:
<html>
<body>
<script>
function reverse(str)
{
if(str.length == 0)return null;
var i = str.length;
var dstr = "";
while(--i >= 0)
{
dstr += str.charAt(i);
}
return dstr;
}
var str = "abcdef";
str = reverse(str);
document.write(str);
</script>
</body>
</html>