JavaScript: Test whether the character at the provided character index is upper case
JavaScript String: Exercise-43 with Solution
Write a JavaScript function to test whether the character at the index provided is upper case.
Test Data:
console.log(isUpperCaseAt('Js STRING EXERCISES', 1));
false
Pictorial Presentation:

Sample Solution:-
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript function to test whether the character at the provided index is upper case</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function isUpperCaseAt(str, index) {
return str.charAt(index).toUpperCase() === str.charAt(index);
}
console.log(isUpperCaseAt('Js STRING EXERCISES', 1));
Sample Output:
false
Flowchart:

Live Demo:
See the Pen JavaScript Test whether the character at the provided character index is upper case-string-ex-43 by w3resource (@w3resource) on CodePen.
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Previous: Write a JavaScript function to uncapitalize each word in the string.
Next: Write a JavaScript function to test whether the character at the provided character index is lower case.
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JavaScript: Tips of the Day
Assigns default values for all properties in an object that are undefined
Example:
const tips_defaults = (obj, ...defs) => Object.assign({}, obj, ...defs.reverse(), obj); console.log(tips_defaults({ p: 1 }, { q: 2 }, { q: 6 }, { p: 3 }));
Output:
[object Object] { p: 1, q: 2 }
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