18 lines
592 B
Markdown
18 lines
592 B
Markdown
### Get Ordinal Suffix of Number
|
|
|
|
Use the modulo operator (`%`) to find values of single and tens digits.
|
|
Find which ordinal pattern digits match.
|
|
If digit is found in teens pattern, use teens ordinal.
|
|
|
|
```js
|
|
const toOrdinalSuffix = int => {
|
|
int = parseInt(int);
|
|
var digits = [ (int % 10), (int % 100)];
|
|
var ordinals = ["st", "nd", "rd", "th"];
|
|
var oPattern = [1,2,3,4];
|
|
var tPattern = [11, 12, 13, 14, 15, 16, 17, 18, 19]
|
|
|
|
return oPattern.includes(digits[0]) && !tPattern.includes(digits[1]) ? int + ordinals[digits[0]-1] : int + ordinals[3];
|
|
}
|
|
// toOrdinalSuffix("123") -> "123rd"
|
|
``` |