javascript - Why does jquery have a function "returnTrue()" and "returnFalse()" that just return true and false? -


according https://github.com/jquery/jquery/blob/9434e03193c45d51bbd063a0edd1a07a6178d33f/src/event.js#l21-l27 there 2 functions in event.js in jquery return true , false: events.js

function returntrue() {   return true; }  function returnfalse() {   return false; }

i know good. don't understand reasoning this.

did , see used?

they used stubs assignments need function returns boolean.

for example on line 670 of same document:

    this.isdefaultprevented = returntrue;

isdefaultprevented function. needs function returns true default functionality.


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