Скачать или смотреть Let's test your JavaScript Brain 🧠💥

Think you know JavaScript? Let’s test that with this tricky interview question Most developers instinctively guess true, but the actual output is false. Here's why: JavaScript evaluates this expression left to right due to the left-to-right associativity of the greater-than operator. First, 7 greater-than 6 evaluates to true. Then, in the next step, the expression becomes true greater-than 5. Now here's where type coercion kicks in: JavaScript tries to convert the boolean true into a number to perform the comparison. true becomes 1, so you're actually evaluating 1 greater-than 5, which results in false. This is a classic example of implicit type coercion and why blindly chaining comparison operators can lead to unexpected results in JavaScript.

Let’s break it down further: Type coercion in JavaScript is the automatic or implicit conversion of values from one data type to another — like boolean to number, or string to number. The greater-than operator compares two values by converting them to numbers if necessary. This is why when comparing a boolean and a number, the boolean is coerced into 0 or 1. It’s also worth noting that operator associativity defines the direction in which an expression is evaluated when multiple operators of the same precedence appear. In this case, since greater-than operator is left-associative, 7 greater-than 6 greater-than 5 becomes (7 greater-than 6) greater-than 5. Got caught off guard? That’s what makes JavaScript both fun and frustrating! These subtle quirks are often tested in interviews, so understanding them gives you a major edge.

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