So I have a var with value in digits and i want to add '=' sign at the third last position such that
var num = 98564;
would become
985=64
by googling I came accross this function
String.prototype.insert = function (index, string) {
if (index > 0)
return this.substring(0, index) + string + this.substring(index, this.length);
else
return string + this;
}
I think it will do my job, but I also want to keep a condition that if var num = 98;
(2 digits) then the output should be 0=98
can you help me modifying that function? also guide me to do the same in PHP (any inbuilt function that you know?) Thanks!
function new_num($int) {
$new_num = (isset($int) ? (strlen($int) > 2 ? substr_replace($int, '=', strlen($int)-2, 0) : '0=' . $int) : null);
return $new_num;
}
$num = 16000;
$new_num = new_num($num);
The function will check that the input is set (although it's a bit redundant in a function seeing as the variable is required, I put it there in case you didn't want it to be a function) and then check if the length of the input is greater than 2. If greater than 2, it will insert the "=", otherwise it will add "0=" to the front. The javascript is doing essentially the same thing but just to note it has to be converted to a string to manipulate it with substring, length, etc.
var num = 16000;
num = num.toString();
if (num.length > 2) {
var new_num = num.substring(0, num.length-2) + '=' + num.slice(-2);
} else {
var new_num = '0=' + num;
}
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