JavaScript: Check if a string ends with specified suffix

Last update on May 30 2022 09:59:00 (UTC/GMT +8 hours)

JavaScript String: Exercise-30 with Solution

Write a JavaScript function check if a string ends with specified suffix.

Test Data :
console.log(string_endsWith('JS PHP PYTHON','PYTHON'));
true
console.log(string_endsWith('JS PHP PYTHON',''));
false

Pictorial Presentation:

JavaScript: Check if a string ends with specified suffix

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function check if a string ends with specified suffix</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function string_endsWith(str, suffix) 
{
 
 if (((str===null) || (str==='')) || ((suffix===null) || (suffix==='')))
   {
    return false;
   }
  else
  {     
   str = str.toString();
   suffix = suffix.toString();
   }
 return str.indexOf(suffix, str.length -     suffix.length) !== -1;
}

console.log(string_endsWith('JS PHP PYTHON','PYTHON'));

console.log(string_endsWith('JS PHP PYTHON',''));

Sample Output:

true
false

Flowchart:

Live Demo:

See the Pen JavaScript Check if a string ends with specified suffix - string-ex-30 by w3resource (@w3resource) on CodePen.

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JavaScript: Tips of the Day

How to insert an item into an array at a specific index (JavaScript)?

What you want is the splice function on the native array object.

arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:

var arr = [];
arr[0] = "Jani";
arr[1] = "Hege";
arr[2] = "Stale";
arr[3] = "Kai Jim";
arr[4] = "Borge";

console.log(arr.join());
arr.splice(2, 0, "Lene");
console.log(arr.join());

Ref: https://bit.ly/2BXbp04