Expressions

• Ternary {{ x ? y : z }}
• Prefix {{ !xor-x }}
• Infix {{ x * (y + 3) }}
• Postfix {{ x++ }} or {{ x-- }}
• Comparison {{ x == y }}
• Function calls {{ name.split(" ") }}
• Logical Expressions {{ isHome || isContact }}

Ternary

You can use ternary expressions to conditionally render content. Example:

<span>{{ x == 1 ? "yes" : "no" }}</span>

The advantage of a "ternary expression" over an "if statement" is that it can be used inside of any other expressions.

Prefix

You can use prefix expressions to negate or invert a boolean value. Example:

<span>{{ !isTall ? "Not tall" : "Is tall" }}</span>
<span>{{ -x }}</span>

Infix

You can use infix expressions to perform arithmetic operations. Example:

<ul>
    <li>{{ x + y }}</li> {{-- Addition --}}
    <li>{{ x - y }}</li> {{-- Subtraction --}}
    <li>{{ x * y }}</li> {{-- Multiplication --}}
    <li>{{ x / y }}</li> {{-- Division --}}
    <li>{{ x % y }}</li> {{-- Modulo --}}
    <li>{{ (x + 2) / (y * (4 - c)) }}</li> {{-- Grouped expressions --}}
</ul>

Postfix

You can use postfix expressions to increment or decrement a variable. Example:

<span>{{ x++ }}</span> {{-- Increment --}}
<span>{{ x-- }}</span> {{-- Decrement --}}

Comparison

Comparison expressions produce a boolean value. Example:

@if(x == 1)
    <p>x is 1</p>
@end

Supported Operators

All supported operators are listed in the table below:

Operator	Description
==	Equal
!=	Not equal
>	Greater
<	Less
>=	Greater or equal
<=	Less or equal

Function Calls

You can use function calls to call functions. Textwire has a few built-in functions that you can use in your templates.

Functions in Textwire are type-specific, which means that you can't call a function on a variable that is not of the same type as the function. For example, you can't call a split function on an integer variable.

Example:

{{ name.split(" ") }}

You can read more detail about built-in functions on the Functions Guide page.

Logical Expressions

You can use logical OR (||) and logical AND (&&) expressions to combine boolean values.

@if(admin || owner)
    @component('admin-popup')
@end

@if(isSunny && isWarm)
    @component('good-weather-widget')
@end

Logical expression accepts any literal value and converts it to boolean. Read about Truthy and Falsy Values.