# ChardScript Variables

### Variables

Variables are containers for storing data values.

### Creating Variables

To declaring a variable, you need use <mark style="color:red;">`call`</mark> to creating a new variable.

A variable is created the moment you first assign a value to it.

**Example**

{% code lineNumbers="true" %}

```renpy
call x = 5
call y = "Hello World!"
echo(x)
echo(y)
```

{% endcode %}

Variables do not need to be declared with any particular *type*, and can even change type after they have been set.

**Example**

{% code lineNumbers="true" %}

```renpy
call x = 5              # x is number
call x = "Hello World!" # x is string now
echo(x)
```

{% endcode %}

### Single or Double Quotes?

String variables can be declared using only double quotes:

**Example**

{% code lineNumbers="true" %}

```renpy
# Do
call x = "Hi World!"
# Don't
call x = 'Hi World!'
```

{% endcode %}

### Case-Sensitive

Variable names are case-sensitive.

**Example**

{% code lineNumbers="true" %}

```renpy
call x = 5
call X = "Hello World!"
# X will not overwrite x
```

{% endcode %}


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