What does == === mean?

The === operator means "is exactly equal to," matching by both value and data type. The == operator means "is equal to," matching by value only. Copy link CC BY-SA 2.5.

What does === mean in code?

Greater than <= Less than but equal to = Greater than but equal to == Equal to != Not equal to. There is also another Equal to comparison operator. It is === . It's evil twin would be !==

What does === signifies in a === B?

$a === $b (Identical) TRUE if $a is equal to $b , and they are of the same type. ( introduced in PHP 4)

What is the use of == === operators?

=== (Triple equals) is a strict equality comparison operator in JavaScript, which returns false for the values which are not of a similar type. This operator performs type casting for equality. If we compare 2 with “2” using ===, then it will return a false value.

Is == and === the same?

The main difference between the == and === operator in javascript is that the == operator does the type conversion of the operands before comparison, whereas the === operator compares the values as well as the data types of the operands.

== vs === - Beau teaches JavaScript

Which is faster ++ i or i ++?

++i is sometimes faster than, and is never slower than, i++. For intrinsic types like int, it doesn't matter: ++i and i++ are the same speed. For class types like iterators or the previous FAQ's Number class, ++i very well might be faster than i++ since the latter might make a copy of the this object.

What does !== Mean in JavaScript?

The strict inequality operator ( !== ) checks whether its two operands are not equal, returning a Boolean result. Unlike the inequality operator, the strict inequality operator always considers operands of different types to be different.

What is == and === in Java?

1) When we compare two variables of different type e.g. a boolean with a string or a number with String using == operator, it automatically converts one type into another and return value based upon content equality, while === operator is strict equality operator in Java, and only return true if both variable of same ...

What is this != Called?

Remarks. The binary equality operators compare their operands for strict equality or inequality. The equality operators, equal to ( == ) and not equal to ( !=

What does == mean in C++?

== is an Equal To Operator in C and C++ only, It is Binary Operator which operates on two operands. == compares value of left and side expressions, return 1 if they are equal other will it will return 0.

What does ≡ mean in math?

≡ means identical to. This is similar to, but not exactly the same as, equals. Therefore, if in doubt, stick to =. ≈ means approximately equal to, or almost equal to. The two sides of a relationship indicated by this symbol will not be accurate enough to manipulate mathematically.

What does with 3 lines mean?

The equal sign with two lines means something is equal to something. Example: a = 3, b = 9. The equal sign with three lines means that something is identical or similar to something but not necessarily equal. Thus, a triple equals sign means equivalent.

What does 3 dashes mean in maths?

Originally Answered: What does a triple equals sign mean? Two lines means something is equal to something. Example: x=5; y=7. Three lines means that something is identical or similar to something, but not necessarily equal to that something. Example: x (triple bar) 5; y (triple bar) 7.

What does _ mean in text?

The emoticon . _. means "Apathy," "Disappointment," or "Resignation."

What does += mean?

The addition assignment operator ( += ) adds the value of the right operand to a variable and assigns the result to the variable. The types of the two operands determine the behavior of the addition assignment operator. Addition or concatenation is possible.

What does && means?

The && (logical AND) operator indicates whether both operands are true. If both operands have nonzero values, the result has the value 1 .

What is ≈ called?

The symbol ≈ means approximately equal to.

What does this mean >=?

The greater than or equal to symbol is used to represent inequality in math. It tells us that the given variable is either greater than or equal to a particular value. For example, if x ≥ 3 is given, it means that x is either greater than or equal to 3.

What does => mean in math?

It stands for "implies that". For example, x=2⟹x2=4 - if x is 2, then it is obvious that x squared is 4; the symbol essentially shows a function here.

What does i += 2 mean in Java?

Java += operator

+= is compound addition assignment operator which adds value of right operand to variable and assign the result to variable. Types of two operands determine the behavior of += in java. In the case of number, += is used for addition and concatenation is done in case of String.

What does |= mean in Java?

The bitwise OR assignment operator ( |= ) uses the binary representation of both operands, does a bitwise OR operation on them and assigns the result to the variable.

What does :: mean in Java?

The double colon (::) operator, also known as method reference operator in Java, is used to call a method by referring to it with the help of its class directly. They behave exactly as the lambda expressions.

What does 3 dots mean in JavaScript?

(three dots in JavaScript) is called the Spread Syntax or Spread Operator. This allows an iterable such as an array expression or string to be expanded or an object expression to be expanded wherever placed.

Is != The same as !==?

They are subtly not the same. '1' != 1 // false (these two are the same) '1' !==

What does += in C++ mean?

+= Add AND assignment operator, It adds right operand to the left operand and assign the result to left operand. C += A is equivalent to C = C + A. -= Subtract AND assignment operator, It subtracts right operand from the left operand and assign the result to left operand.