If and for

The if and for instructions are used to execute code based on a condition and to iterate over a slice, i.e. a sequence of elements of the same type.

if

The if instruction executes the code inside it if the condition is true. For example, the following instruction:

{% if stock > 10 %}
  High availability
{% end %}
High availability

shows "High availability" only if the stock quantity is greater than 10.

If you want to execute one block of code or another based on a condition, you can write:

{% if stock > 10 %}
  High availability
{% else %}
  Low availability
{% end %}
High availability

Scriggo also supports the else if form:

{% if stock > 10 %}
  High availability
{% else if stock > 0 %}
  Low availability
{% else %}
  Not available
{% end %}
High availability

for

The for instruction lets you iterate over a slice (essentially a sequence of elements of the same type), assigning each element to a variable.

For example, if the products variable is a slice of Product, the following example shows the names of all contained products:

{% for product in products %}
  <div>{{ product.Name }}</div>
{% end %}

The product variable is implicitly declared and has the same type as the elements of products. It is also visible only inside the for instruction.