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JavaScript: Get English ordinal suffix for the day of the month

JavaScript Datetime: Exercise-23 with Solution

Write a JavaScript function to get the English ordinal suffix for the day of the month, 2 characters (st, nd, rd, or th).

Test Data :
dt= new Date();
console.log(english_ordinal_suffix(dt));
"23rd"
dt = new Date(2015, 10, 1);
console.log(english_ordinal_suffix(dt));
"1st"

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function to get English ordinal suffix for the day of the month, 2 characters (st, nd, rd or th.)</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function english_ordinal_suffix(dt)
  {
    return dt.getDate()+(dt.getDate() % 10 == 1 && dt.getDate() != 11 ? 'st' : (dt.getDate() % 10 == 2 && dt.getDate() != 12 ? 'nd' : (dt.getDate() % 10 == 3 && dt.getDate() != 13 ? 'rd' : 'th'))); 
  }

dt = new Date();
console.log(english_ordinal_suffix(dt));

dt = new Date(2015, 10, 1);
console.log(english_ordinal_suffix(dt));

Sample Output:

20th
1st

Flowchart:

Flowchart: JavaScript- Get English ordinal suffix for the day of the month

Live Demo:

See the Pen JavaScript - Get English ordinal suffix for the day of the month-date-ex-23 by w3resource (@w3resource) on CodePen.


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Previous: Write a JavaScript function to get a full textual representation of the day of the week (Sunday through Saturday).
Next: Write a JavaScript function to get ISO-8601 week number of year, weeks starting on Monday.

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JavaScript: Tips of the Day

Returns 1 if the array is sorted in ascending order, -1 if it is sorted in descending order or 0 if it is not sorted

Example:

const tips_Sorted = arr => {
  let direction = -(arr[0] - arr[1]);
  for (let [i, val] of arr.entries()) {
    direction = !direction ? -(arr[i - 1] - arr[i]) : direction;
    if (i === arr.length - 1) return !direction ? 0 : direction / Math.abs(direction);
    else if ((val - arr[i + 1]) * direction > 0) return 0;
  }
};
console.log(tips_Sorted([0, 1, 2, 2]));
console.log(tips_Sorted([5, 7, 3]));
console.log(tips_Sorted([8, 6, 4]));

Output:

1
0
-1

 

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