# Pages

## Variables
You can create dynamic pages using variables.By writing <b>{ variable-name }</b> in your text, the value of that variable can be embedded.For example, if the value of the variable thing in the text <b>Hello { thing } world!</b> is <b>ai</b>, then the text will turn into <b>Hello ai world!</b>.

Variables are evaluated from top to bottom, so referencing variables not yet declared is not possible.For example, when declaring the three variables <b>A, B, C</b> in the given order, referencing <b>A</b> or <b>B</b> from within <b>C</b> is possible, but referencing <b>B</b> or <b>C</b> from within <b>A</b> is not.

To receive user input on your page, include a "User input" block and set it to store the user's input in a variable name (the variable will automatically be created).You can then activate different actions depending on the user input stored in that variable.

Using functions allows you to create a reusable way of calculating values.To use functions, create a variable of the type "function".Functions can use slots (arguments), which are then available as variables within the function.In addition, functions whose arguments are functions ("higher-order functions") are also possible.Besides predefining functions, you can also define functions in the slots of higher-order functions on the fly.