Unveil the Power of the JavaScript Double Question Mark: Uncover Insights and Rewrite Your Code

js double question mark

Unveil the Power of the JavaScript Double Question Mark: Uncover Insights and Rewrite Your Code

The JavaScript double question mark operator (??) is a logical operator that returns the first operand if it is truthy, and the second operand if it is falsy. It is often used to provide a default value for a variable or to check if a variable is null or undefined.

The double question mark operator is a powerful tool that can be used to improve the readability and maintainability of your code. It can also help to prevent errors by ensuring that variables are always assigned a valid value.

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Mark Wahlberg's Height

how tall is mark wahlberg

Mark Wahlberg is a well-known American actor, producer, and former rapper. He is known for his roles in films such as The Departed, Ted, and The Fighter. Wahlberg’s height has been a topic of discussion among his fans and the general public, with many wondering how tall he actually is. There is some discrepancy regarding … Read more

How Old is Mark Wahlberg?

how old is mark wahlberg

Mark Wahlberg is an American actor and producer. Born in Boston, Massachusetts, on June 5, 1971, he is currently 51 years old. He rose to fame in the early 1990s for his roles in popular films such as “Boogie Nights” and “The Perfect Storm.” Throughout his career, Wahlberg has starred in a wide range of … Read more

Mark Esper's Book: A Journey Through War, Politics, and Leadership

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In the realm of leadership and military strategy, few names carry as much weight as Mark Esper, the former United States Secretary of Defense. His recently published book, titled “A Sacred Oath: Memoirs of a Secretary of Defense During Extraordinary Times,” offers a captivating glimpse into his life, career, and the pivotal moments that shaped … Read more

Who Wrote the Book of Mark: Unveiling the Mysterious Author

who wrote the book of mark

Throughout the annals of biblical literature, the authorship of the Book of Mark has remained shrouded in mystery, inviting scholarly debate and intriguing inquiry. While traditional beliefs ascribe the gospel to John Mark, a companion of the apostle Peter, the evidence surrounding this attribution is far from conclusive. The Book of Mark, renowned for its … Read more

Mark Greaney Books in Order

mark greaney books in order

Dive into the gripping world of Mark Greaney’s thrilling novels, where action, suspense, and international intrigue collide. Experience the adrenaline-fueled adventures of Court Gentry, also known as the Gray Man, and other captivating characters as they navigate treacherous missions and unravel intricate conspiracies. Mark Greaney, a New York Times bestselling author, has crafted a series … Read more

Mark Klimek's Blue Book: A Comprehensive Guide to the World of Stocks

mark klimek blue book

Welcome to the world of stocks, where fortunes are made and lost, and dreams are either realized or shattered. For those navigating this complex and often intimidating landscape, Mark Klimek’s Blue Book serves as an invaluable guide, offering a wealth of information and insights to help investors make informed decisions. The Blue Book is more … Read more