There is a number:
var chislo = 123456
How do you flip it – reflect it?
Solution
Convert the number to a string
chislo.toString()
Now we have a string data type. A string is an iterable object, so it can be cast to an array:
[...chislo.toString()]
Each “digit” now lies under a separate array element. Let’s reverse() this array
[...chislo.toString()].reverse()
Now we just need to glue all the individual lines into one
[...chislo.toString()].reverse().join("")
And now we have a string variant of the inverted number. Now all we have to do is to convert the string to a number:
Number([...chislo.toString()].reverse().join(""))
All done!
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