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# Comparisons
We know many comparison operators from maths:
We know many comparison operators from maths.
In JavaScript they are written like this:
- Greater/less than: <code>a &gt; b</code>, <code>a &lt; b</code>.
- Greater/less than or equals: <code>a &gt;= b</code>, <code>a &lt;= b</code>.
- Equals: `a == b` (please note the double equals sign `=`. A single symbol `a = b` would mean an assignment).
- Not equals. In maths the notation is <code>&ne;</code>, but in JavaScript it's written as an assignment with an exclamation sign before it: <code>a != b</code>.
- Equals: `a == b`, please note the double equality sign `=` means the equality test, while a single one `a = b` means an assignment.
- Not equals. In maths the notation is <code>&ne;</code>, but in JavaScript the it's written as <code>a != b</code>.
In this article we'll learn more about different types of comparisons, how JavaScript makes them, including important peculiarities.
## Boolean is the result
Like all other operators, a comparison returns a value. In this case, the value is a boolean.
All comparison operators return a boolean value:
- `true` -- means "yes", "correct" or "the truth".
- `false` -- means "no", "wrong" or "not the truth".