How do you use the ? : (conditional) operator in JavaScript?
Jun 7, 2011 · It's a little hard to google when all you have are symbols ;) The terms to use are "JavaScript conditional operator". If you see any more funny symbols in JavaScript, you should …
Which equals operator (== vs ===) should be used in JavaScript ...
Dec 11, 2008 · When using === for JavaScript equality testing, everything is as is. Nothing gets converted before being evaluated. var1 == var2. When using == for JavaScript equality …
JavaScript: difference between a statement and an expression?
Sep 16, 2014 · An expression corresponds to a sentence fragment in human language, a JavaScript statement corresponds to a full sentence. A program is a list of statements. The …
How to use OR condition in a JavaScript IF statement?
Mar 2, 2010 · javascript 'or' statement. 0. if and or clauses in javascript. 1. How to use the OR statement in ...
javascript - Do we need semicolon at the end? - Stack Overflow
The concept is known as JavaScript Semicolon Insertion or "Automatic Semicolon Insertion". This blog post: JavaScript Semicolon Insertion: Everything you need to know (archived from the …
What's the difference between & and && in JavaScript?
This allows Javascript to stop evaluation altogether. This is called short circuiting. This statement doesn't alert anything and false is returned: true && false && alert("I am quiet!") // returns false …
Javascript Logical Operator AND inside 'if' condition
May 17, 2017 · Condition 1 and 3 are captured by the else statement and both return true (which is not what you want, you want condition 3 to return false). When providing the numbers 7 and …
if statement - "elseif" syntax in JavaScript - Stack Overflow
Oct 18, 2020 · Simple javascript IF statement - what is the correct syntax? 5. Javascript - Weird if syntax. 3.
JavaScript: declarations vs expressions vs statements
Sep 21, 2017 · Here is a statement that includes a keyword: break; And here is one that does not: foo(); In the first example I execute a break, whereas in the second one I call a function. Both …
How do I check for null values in JavaScript? - Stack Overflow
Jan 4, 2024 · AFAIK in JAVASCRIPT when a variable is declared but has not assigned value, its type is undefined. so we can check variable even if it would be an object holding some …