Boolean() vs Boolean.prototype.toString()
Boolean() and Boolean.prototype.toString() are both JavaScript Boolean APIs, and choosing between them is a common point of confusion. This page compares their syntax, parameters, return values, and typical use cases so you can pick the right one. Boolean(): Converts a value to a boolean primitive. Its syntax is Boolean(value). Boolean.prototype.toString(): Returns string representation. Its syntax is bool.toString(). Example of Boolean(): Boolean(1) // true. Example of Boolean.prototype.toString(): true.toString() // "true". Read the full references for Boolean() and Boolean.prototype.toString() to see edge cases, time complexity, browser support, and the mistakes developers most often make with each. Other Boolean APIs worth comparing: Boolean.prototype.valueOf(). Both belong to the Boolean category in the JS Reference documentation, which covers 3 entries in total. Try both in the JavaScript playground to see the behavioral difference live.