What is the benefit of using === operator to test for undefined instead of using == operator?
665
Which equals operator (== vs ===) should be used in JavaScript comparisons?
152763
php == vs === operator
57386
Why don't C++ compilers define operator== and operator!=?
110074
What is the difference between == and equals() in Java?
88299
What is the purpose of passing-in undefined?
72519
What's the difference between "==" and "=~"?
158810
Why does >= return false when == returns true for null values?
110007
What is the difference between operator "=" and "==" in Bash?
33772
Is there any difference in equals and == for String variables?
124650
Is `if (condition = value)` the correct syntax for comparison?
82116
Should I be using object literals or constructor functions?
104880
Is the ternary operator faster than an "if" condition in Java
58980
How does the ternary operator work?
148523
How to check whether operator== exists?
68074
JavaScript 'in' operator for `undefined` elements in Arrays
17078
if(false==condition). Why?
24759
How do I use the conditional (ternary) operator?