index 2 is not the beginning of the string or line
    regex2.lastIndex = 2;
    regex2.test(".\nfoo"); // true - index 2 is the beginning of a line
    

##  Specifications

Specification  
---  
[ ECMAScript Language Specification  
#  sec-get-regexp.prototype.sticky  ](https://tc39.es/ecma262/multipage/text-
processing.html#sec-get-regexp.prototype.sticky)  
  
##  Browser compatibility

BCD tables only load in the browser  with JavaScript enabled. Enable
JavaScript to view data.

##  See also

  * [ Polyfill of the ` sticky ` flag in ` core-js ` ](https://github.com/zloirock/core-js#ecmascript-string-and-regexp)
  * [ ` RegExp.prototype.lastIndex ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
  * [ ` RegExp.prototype.dotAll ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/dotAll)
  * [ ` RegExp.prototype.global ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/global)
  * [ ` RegExp.prototype.hasIndices ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/hasIndices)
  * [ ` RegExp.prototype.ignoreCase ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/ignoreCase)
  * [ ` RegExp.prototype.multiline ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/multiline)
  * [ ` RegExp.prototype.source ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/source)
  * [ ` RegExp.prototype.unicode ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/unicode)

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