JavaScript Error Handling: Exercises, Practice, Solutions

JavaScript Error Handling: [ 13 exercises with solution]

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1. Throw Error for Non-Integer

Write a JavaScript function that takes a number as a parameter and throws a custom 'Error' if the number is not an integer.

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2. Handle TypeError in Try-Catch

Write a JavaScript program that uses a try-catch block to catch and handle a 'TypeError' when accessing a property of an undefined object.

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3. Throw Error for Division by Zero

Write a JavaScript function that accepts two numbers as parameters and throws a custom 'Error' if the second number is zero.

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4. Throw Error for Negative Number

Write a JavaScript function that takes a number as a parameter and throws a custom 'Error' if the number is negative.

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5. Throw Error for Empty Array

Write a JavaScript function that takes an array as a parameter and throws a custom 'Error' if the array is empty.

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6. Throw Error for Empty String

Write a JavaScript function that takes a string as a parameter and throws a custom 'Error' if the string is empty.

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7. Handle RangeError for Invalid Index

Write a JavaScript program that uses a try-catch block to catch and handle a 'RangeError' when accessing an array with an invalid index.

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8. Multiple Catch Blocks

Write a JavaScript program that shows the use of multiple catch blocks to handle different types of errors separately.

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9. Handle URIError for Invalid URI

Write a JavaScript program that uses a try-catch block to catch and handle a 'URIError' when decoding an invalid URI.

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10. Try-Catch-Finally Example

Write a JavaScript program that demonstrates the use of the 'try-catch-finally' statement to catch and handle an error, and then execute some cleanup code in the 'finally' block.

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11. Handle EvalError

Write a JavaScript program that uses a try-catch block to catch and handle an 'EvalError' when evaluating an invalid expression.

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12. Handle ReferenceError

Write a JavaScript program that uses a try-catch block to catch and handle a 'ReferenceError' when accessing an undefined variable.

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13. Handle SyntaxError for JSON Parsing

Write a JavaScript program that uses a try-catch block to catch and handle a 'SyntaxError' when parsing an invalid JSON string.

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