In JavaScript, why does (undefined && true) return undefined?
93881
Javascript AND operator within assignment
96061
Console returns undefined
48153
How does the new operator work in JavaScript?
145569
Why does the value returned should be on the same line as the return statement in JavaScript?
317
What is the scope of variables in JavaScript?
63854
How do boolean operators work in 'if' conditions?
33974
How does true/false work in PHP?
36929
Why does comparing strings using either '==' or 'is' sometimes produce a different result?
158810
Why does >= return false when == returns true for null values?
134603
Why doesn't a Javascript return statement work when the return value is on a new line?
106258
What is the reason that an empty string evaluates to false in Javascript
68074
JavaScript 'in' operator for `undefined` elements in Arrays
32232
How does the "&" operator work in a PHP function?
120997
What is the purpose of new Boolean() in Javascript?
5377
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
125415
Why is undefined == undefined but NaN != NaN?
38958
How do "and" and "or" act with non-boolean values?