Untitled · Elixir

Comparison Operators

Comparison operators in Elixir are used to compare two values. They evaluate to either true or false. These operators play a crucial role in controlling program flow through conditions.

Here are the primary comparison operators:

Less Than (<): This operator returns true if the value on the left is less than the value on the right.
```
iex> 2 < 3
true
```
Less Than or Equal To (⇐): This operator returns true if the value on the left is less than or equal to the value on the right.
```
iex> 2 <= 2
true
```
Greater Than (>): This operator returns true if the value on the left is greater than the value on the right.
```
iex> 3 > 2
true
```
Greater Than or Equal To (>=): This operator returns true if the value on the left is greater than or equal to the value on the right.
```
iex> 3 >= 3
true
```
Equal To (==): This operator returns true if the value on the left is equal to the value on the right.
```
iex> 2 == 2
true
```
Not Equal To (!=): This operator returns true if the value on the left is not equal to the value on the right.
```
iex> 2 != 3
true
```

These operators are typically used in conditional expressions such as those found in if, unless, and cond statements.

It’s important to note that Elixir provides strict comparison operators as well (=== and !==). These are identical to == and != respectively, but additionally distinguish between integers and floats.

iex> 2 == 2.0
true
iex> 2 === 2.0
false