
Best Way for Conditional Variable Assignment - Stack Overflow
readability: if you don't care it's a boolean or not, you just want to avoid conditional logic and reduce cognitive load that way Note there is some overlap between the advantages using a …
How do you use the ? : (conditional) operator in JavaScript?
Jun 7, 2011 · The conditional (ternary) operator is the only JavaScript operator that takes three operands. This operator is frequently used as a shortcut for the if statement.
javascript - Assign variable in if condition statement, good practice ...
Assignment in a conditional statement is valid in javascript, because your just asking "if assignment is valid, do something which possibly includes the result of the assignment". But …
javascript - Assignment in conditional expression - Stack Overflow
Dec 15, 2013 · I am trying to learn JavaScript at Codecademy. I am working on this problem about for loops, and I can't figure out what is wrong with my code. It says "Assignment in …
javascript: is this a conditional assignment? - Stack Overflow
May 29, 2011 · Also worth noting is that if you had purposely set _gaq to a falsy value (like 0), then it would be reassigned the value of []. So it doesn't behave exactly like conditional …
Variable assignment inside an 'if' condition in JavaScript
Nov 12, 2018 · To understand what is going on, refer to the operator precedence and associativity chart. The expression a = 2 && (b = 8) is evaluated as follows: && operator is evaluated before …
javascript - NULL-safe property access & conditional assignment in ...
Sure, you still need to check if you want an assignment to happen or not. If you use '=' operator, something will inevitably be assigned, be it a data, an undefined or null. So the above is just a …
javascript - Best practice conditional variable assignment in ...
Nov 23, 2021 · A very easy typescript question, which I need assistance with Without using if statements, how would I conditional assign something to a constant variable const …
Is there a "null coalescing" operator in JavaScript?
Jan 25, 2009 · Is there a null coalescing operator in Javascript? For example, in C#, I can do this: String someString = null; var whatIWant = someString ?? "Cookies!"; The best approximation I …
Javascript performance, conditional statement vs assignment …
(Javascript's conditional operator is of the form condition ? expr1 : expr2) It's already been covered that assignment with varName = expression is very cheap: essentially, it takes the …