## Operators

**Operators** are the symbols between values that allow different operations like addition, subtraction, multiplication, and more.

JavaScript has dozens of operators, so let’s focus on the ones you’re likely to see most often.

#### Arithmetic

The + operator **adds** two numbers.

EXAMPLE |
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1 + 2; |

OUTPUT |

3 |

The - operator **subtracts** one number from another.

EXAMPLE |
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50 - 15; |

OUTPUT |

35 |

The * operator **multiplies** two numbers. Notice it’s an asterisk and not the × symbol commonly used in math.

EXAMPLE |
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3 * 12; |

OUTPUT |

36 |

The / operator **divides** one number by another. Notice it’s a forward slash and not the ÷ symbol commonly used in math.

EXAMPLE |
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12 / 4; |

OUTPUT |

3 |

JavaScript expressions follow an order of operations, so even though + is written first in the following example, the multiplication happens first between the last two numbers and *.

EXAMPLE |
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1 + 100 * 5; |

OUTPUT |

501 |

If want more control over the order, that’s where the **grouping** operator comes in handy.

Grouping

() operator **groups** other values and operations. Code located between parentheses evaluates first as JavaScript solves each operation moving from left to right.

Adding the grouping operator to the previous example causes 1 + 100 to evaluate first.

EXAMPLE |
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(1 + 100) * 5; |

OUTPUT |

505 |

#### Concatenation

The + operator can also concatenate strings, which is another way of saying it can add them together.

EXAMPLE |
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"news" + "paper"; |

OUTPUT |

"newspaper" |

#### Assignment

The = operator assigns values. It’s used for setting the value of variables.

EXAMPLE |
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var dinner = "sushi"; |