Javascript Meaning Of Two Exclamation Marks

The exclamation point is part of javascript s logical operators and is called the unary negation operator or more simply logical not it negates the expression that follows it.

Javascript meaning of two exclamation marks. Meaning of double exclamation mark emoji. What does the double exclamation mark mean. This post is also available in.

Actually it is two operators right next to each other. If you have ever noticed a double exclamation mark in someone s javascript code you may be curious what it s for and what it does. Meaning of two exclamation marks javascript.

A manual of typography. Exclamation mark this will also return the boolean opposite of the return value of the function in this case true because undefined is true. In javascript the exclamation mark symbol called a bang is the logical not operator.

Multiple exclamation points or marks two or often three exclamation marks following a word or sentence should be even rarer still in good writing. Think of it. Typeof javascript static javascript is not a static language rather it is a dynamic language.

Exclamation mark exclamation point bang shriek or pling although not the most common use of a logical operator in javascript the double bang or double exclamation mark recently. Is there even such an operator in javascript. I was confused a little when i found two exclamation marks in javascript code.

Meaning of two exclamation marks published on. Returns true of course alert javascriptiscool. In some javascript code you might see the use of a double exclamation marks such as myanswer.