Boolean.prototype.toString() vs Boolean.prototype.valueOf()
Boolean.prototype.toString() and Boolean.prototype.valueOf() 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.prototype.toString(): Returns string representation. Its syntax is bool.toString(). Boolean.prototype.valueOf(): Returns the primitive value. Its syntax is bool.valueOf(). Example of Boolean.prototype.toString(): true.toString() // "true". Example of Boolean.prototype.valueOf(): (new Boolean(true)).valueOf() // true. Read the full references for Boolean.prototype.toString() and Boolean.prototype.valueOf() to see edge cases, time complexity, browser support, and the mistakes developers most often make with each. Other Boolean APIs worth comparing: Boolean(). 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.