ECMAScript 2015 Language Specification – ECMA-262 6th Edition

CAPTCHA: Telling Humans and Computers Apart Automatically. A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. [PAD] [unused1] [unused2] [unused3] [unused4] [unused5] [unused6] [unused7] [unused8] [unused9] [unused10] [unused11] [unused12] [unused13] [unused14] [unused15 4.3.33 attribute. internal value that defines some characteristic of a property. 4.3.34 own property. property that is directly contained by its object. 4.3.35 inherited property. property of an object that is not an own property but is a property (either own or inherited) of the object’s prototype

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