Other operators also use the question mark, such as the null coalescing operator and the optional chaining operator. The question mark and colon have important uses in JavaScript and TypeScript, particularly in the conditional operator. Basically a short form of an if-else statment Conclusion In Javascript, in particular, javascript question mark code example //This is what is called a 'Conditional operator' In Javascript as proof, question mark and colon in javascript code example const isBlack = false const text = isBlack ? 'Yes, black!' : 'No, something else.' console.log(text) // "No, something else." Other useful code examples for the question mark and colon in JavaScript We’ve also used descriptive variable names to make the code more readable. In this example, we’ve used parentheses to group the conditions and ensure the correct order of evaluation. Var result = ( a > b ) ? "A is greater than B" : ( a < b ) ? "B is greater than A" : "A and B are equal"
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