Loops & Conditionals
Zolt provides powerful advanced features including loops, conditionals, and built-in charts.
Loops (foreach)
Iterate over arrays to generate dynamic content.
Basic Loop
zolt
$items = ["Apple", "Banana", "Cherry"]
:::foreach {$items as $item}
- {$item}
:::Result
- Apple
- Banana
- Cherry
Loop with Else
The :::else block is rendered if the collection is empty or doesn't exist.
zolt
$items = []
:::foreach {$items as $item}
- {$item}
:::else
No items found.
:::Result
No items found.
Loop with Index
zolt
$products = [
{name: "Laptop", price: 999},
{name: "Mouse", price: 29},
{name: "Keyboard", price: 79}
]
:::foreach {$products as $product}
{$foreach.index1}. {$product.name}: ${{$product.price}}
:::Result
- Laptop: $999
- Mouse: $29
- Keyboard: $79
Loop Variables
Access loop metadata:
| Variable | Description |
|---|---|
{$foreach.index} | Current index (0-based) |
{$foreach.index1} | Current index (1-based) |
{$foreach.first} | true if first element |
{$foreach.last} | true if last element |
{$foreach.even} | true if index is even |
{$foreach.odd} | true if index is odd |
Examples
zolt
$products = [
{name: "Laptop", price: 999},
{name: "Mouse", price: 29},
{name: "Keyboard", price: 79}
]
:::foreach {$products as $product}
:::if {$foreach.first}
- Featured: {$product.name}
:::elseif {$foreach.last}
- Last Item: {$product.name}
:::else
- {$product.name}
:::
:::Result
- Featured: Laptop
- Mouse
- Last Item: Keyboard
Conditionals (if)
Display content based on conditions.
Basic Condition
zolt
$enabled = true
:::if {$enabled}
This shows when enabled is true.
:::Result
This shows when enabled is true.
With Else
zolt
:::if {$enabled}
Content A
:::else
Content B
:::Result
Content B
With ElseIf
You can chain multiple conditions using :::elseif .
zolt
$status = "warning"
:::if {$status == "success"}
Operation successful!
:::elseif {$status == "warning"}
Proceed with caution.
:::else
An error occurred.
:::Result
Proceed with caution.
Complex Conditions
zolt
:::if {$count > 10}
Many items!
:::elseif {$count > 0 && $count <= 10}
Few items.
:::else
No items.
:::Result
Few items.
Logical & Comparison Operators
Zolt supports standard operators for complex conditions and expressions.
Comparison Operators
| Operator | Description | Example |
|---|---|---|
== | Equal to | {$count == 10} |
!= | Not equal to | {$role != "admin"} |
< | Less than | {$price < 50} |
<= | Less than or equal to | {$age <= 18} |
> | Greater than | {$count > 0} |
>= | Greater than or equal to | {$score >= 100} |
Logical Operators
| Operator | Alias | Description | Example |
|---|---|---|---|
! | - | NOT | {!$enabled} |
&& | and | AND | {$count > 0 && $count < 10} |
|| | or | OR | {$isAdmin || $isEditor} |
Examples
zolt
$count = 5
$enabled = false
:::if {!$enabled && $count > 0}
The system is ready but disabled.
:::Result
The system is ready but disabled.
Ternary Operator
You can use the ternary operator for quick inline choices: condition ? trueValue : falseValue .
zolt
$isLogged = true
Status: {{ $isLogged ? "Online" : "Offline" }}Result
Status: Online
Best Practices
- Check data before using in loops
- Use descriptive variable names
- Limit complexity in visualizations
- Test conditions thoroughly
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