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JavaScript program to clone an object:

JavaScript program to clone an object: Alternatively, you can use the spread operator (…) to clone an object:

JavaScript program to check if a key exists in an object:

JavaScript program to check if a key exists in an object:

JavaScript program to check if a string starts and ends with certain characters:

JavaScript program to check if a string starts and ends with certain characters:

JavaScript program to remove a property from an object:

JavaScript program to remove a property from an object:

JavaScript program to count the number of vowels in a string:

JavaScript program to count the number of vowels in a string:

JavaScript program to convert the first letter of a string into uppercase:

JavaScript program to convert the first letter of a string into uppercase:

JavaScript program to check the number of occurrences of a character in a string:

JavaScript program to check the number of occurrences of a character in a string:

three different ways to create objects in JavaScript:

three different ways to create objects in JavaScript: Object Literal Notation: Object Constructor Notation: Using Object.create() Method:

JavaScript program to reverse a string:

JavaScript program to reverse a string:

JavaScript program to replace all occurrences of a character in a string with another character:

JavaScript program to replace all occurrences of a character in a string with another character: