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JavaScript Validation - Exercises, Practice, Solution

JavaScript validation [10 exercises with solution]

[An editor is available at the bottom of the page to write and execute the scripts.]

1. Write a JavaScript function to validate whether a given value type is boolean or not. Go to the editor

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2. Write a JavaScript function to validate whether a given value type is error or not. Go to the editor

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3. Write a JavaScript function to validate whether a given value type is NaN or not. Go to the editor

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4. Write a JavaScript function to validate whether a given value type is null or not. Go to the editor

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5. Write a JavaScript function to validate whether a given value is number or not. Go to the editor

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6. Write a JavaScript function to validate whether a given value is object or not. Go to the editor

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7. Write a JavaScript function to validate whether a given value type is pure json object or not. Go to the editor

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8. Write a JavaScript function to validate whether a given value is RegExp or not. Go to the editor

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9. Write a JavaScript function to validate whether a given value type is char or not. Go to the editor

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10. Write a JavaScript function to check whether given value types are same or not. Go to the editor

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More to Come !

* To run the code mouse over on Result panel and click on 'RERUN' button.*

Live Demo:

See the Pen javascript-common-editor by w3resource (@w3resource) on CodePen.


Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.



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JavaScript: Tips of the Day

Tagged template literals

function getPersonInfo(one, two, three) {
  console.log(one);
  console.log(two);
  console.log(three);
}

const person = 'Lydia';
const age = 21;

getPersonInfo`${person} is ${age} years old`;

If you use tagged template literals, the value of the first argument is always an array of the string values. The remaining arguments get the values of the passed expressions!

Ref: https://bit.ly/323Y0P6