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Three-way comparison - Wikipedia
In C++, the C++20 revision adds the spaceship operator <=>, which returns a value that encodes whether the two values are equal, less, greater, or unordered and can return different types depending on the strictness of the comparison.

What is <=> (the 'Spaceship' Operator) in PHP 7? - Stack Overflow
PHP 7 introduced the Spaceship (<=>) operator. What is it and how does it work?

Comparison operators - cppreference.com
If both operands have the same enumeration type E, the operator yields the result of converting the operands to the underlying type of E and applying <=> to the converted operands.

PHP: rfc:combined-comparison-operator
Add a new operator (expr) <=> (expr), it returns 0 if both operands are equal, 1 if the left is greater, and -1 if the right is greater. It uses exactly the same comparison rules as used by our existing comparison operators: <, <=, ==, >= and >.

PHP 7 | Spaceship Operator - GeeksforGeeks
The spaceship operator or combined comparison operator is denoted by "<=>". This is a three-way comparison operator and it can perform greater than, less than and equal comparison between two operands.

Combined Comparison Operator - PHP 7 Explained
The combined comparison operator, colloquially also called the spaceship operator, because it somewhat looks like a TIE fighter in Star Wars, will compare the two given values and either return -1, 1 or 0 based on the result.

Ruby Comparison Operators - w3resource
Ruby Comparison Operators: Comparison operators take simple values (numbers or strings) as arguments and used to check for equality between two values.

Chaining comparison operators in Python - GeeksforGeeks
In Python, comparison operator chaining allows us to write cleaner, more readable code when evaluating multiple conditions. Instead of using multiple and conditions, Python enables chaining comparisons directly in a mathematical-style expression.

Spaceship Operator in JavaScript: Does JS Have Ruby's Combined ...
Many languages offer unique operators to simplify common comparison tasks, and one such operator that has gained popularity is the "spaceship operator" ( `<=>` ), most notably popularized by Ruby.

Ruby - Operators - Online Tutorials Library
There is one more operator called Ternary Operator. It first evaluates an expression for a true or false value and then executes one of the two given statements depending upon the result of the evaluation.

 

 

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