Understanding Conditional Assignment in Javascript 💻🔍

Hey there, fellow programmers! 👋 Let's dive into the difference between two common conditional assignment expressions in programming: b = a || 4; and b = a ?? 4;. 🤔

1️⃣ b = a || 4;: This statement assigns the value of variable a to b if a is truthy (evaluates to true). However, if a is falsy (evaluates to false), it assigns the value 4 to b. The logical OR operator (||) is used here, considering both truthy and falsy values.

2️⃣ b = a ?? 4;: In this statement, b receives a value if a is not null or undefined. However, if a is null or undefined, it assigns the value 4 to b. The nullish coalescing operator (??) is utilized here, focusing specifically on null or undefined values.

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