Assignation

Assignation

Global variables

As in Go lang, you must initially declare your global variable using the := assignment operator and subsequent overwrite use the = operator.

Razor expressionGo TemplateNote
@string := "string value";{{- set $ "string" "string value" }}Global declare and assign of string
@numeric1 := 10;{{- set $ "numeric1" 10 }}Global declare and assign of integer
@numeric2 := 1.23;{{- set $ "numeric2" 1.23 }}Global declare and assign of floating point
@numeric3 := 4E+4;{{- set $ "numeric3" 4E+4 }}Global declare and assign of large scientific notation number
@numeric4 := 5E-3;{{- set $ "numeric4" 5E-3 }}Global declare and assign of small scientific notation number
@hexa1 := 0x100;{{- set $ "hexa1" 0x100 }}Global declare and assign of hexadecimal number
@result1 := (2+3)*4;{{- set $ "result1" (mul (add 2 3) 4) }}Global declare and assign of mathematic expression
@result2 := String("hello world!").Title;{{- set $ "result2" ((String "hello world!").Title) }}Global declare and assign of generic expression
@result2 = "Replaced";{{- set $ "result2" "Replaced" }}Global replacement of previously declared global variable

Local variables

First declaration of local variable must use the := assignment operator and subsequent assignation must use only =.

There are many form used to declare local variable using razor syntax:

  • &#64;{variable} := <value or expression>
  • &#64;{variable := <value or expression>}
  • &#64;$variable := <value or expression>
Razor expressionGo TemplateNote
@{string := "string value"}{{- $string := "string value" }}Local declare and assign of string
@{numeric1} := 10{{- $numeric1 := 10 }}Local declare and assign of integer
@$numeric2 := 1.23{{- $numeric2 := 1.23 }}Local declare and assign of floating point
@{numeric3 := 4E+4}{{- $numeric3 := 4E+4 }}Local declare and assign of large scientific number
@{numeric4 := 5E-3}{{- $numeric4 := 5E-3 }}Local declare and assign of small scientific number
@{hexa1 := 0x100}{{- $hexa1 := 0x100 }}Local declare and assign of hexadecimal number
@{result1 := (2+3)*4}{{- $result1 := mul (add 2 3) 4 }}Local declare and assign of mathematic expression
@{result2 := String("hello world!").Title}{{- $result2 := (String "hello world!").Title }}Local declare and assign of generic expression
@{result2} = "Replaced";{{- $result2 = "Replaced" }}Local replacement of previously declared local variable

Assignment operators

Using the Razor syntax, it is possible to use assignment operators such as +=, /=… The operators that are supported are:

OperatorAssignmentNote
++=Addition
--=Subtraction
**=Multiplication
/, ÷/=, ÷=Division
%%=Modulo
&&=Bitwise AND
```
^^=Bitwise XOR
&^&^=Bit clear
<<, «<<=, «==Left shift
>>, »>>=, »==Right shift
Razor expressionGo TemplateNote
@num := 10{{- set $ "num" 10 }}Add assignment operator on global
@num += 5{{- set $ "num" (add $.num 10) }}Add assignment operator on global
@{local} := 5{{- $local := 5 }}Local assignation
@$local += 10{{- $local = add $local 10 }}Add assignment operator on local
@{local} *= 20{{- $local = mul $local 20 }}Multiply assignment operator on local
@{local /= 2}{{- $local = div $local 2 }}Divide assignment operator on local

Exception

Razor expressionGo TemplateNote
`@{invalid} := print “hello” “world”upper``{{- $invalid := print }} “hello” “world”
`@{valid := print “hello” “world”upper}``{{- $valid := print “hello” “world”
`@($valid := print “hello” “world”upper)``{{- $valid := print “hello” “world”

Assignation within expression

@-foreach ($value := to(10))
    @{value}
@-end foreach

@-foreach ($index, $value := to(10))
    @{index} = @($value * 2)
@-end foreach

@-if ($result := 2+2 == 4)
    result = @{result}
@-end if

@-with ($value := 2+2)
    value = @{value}
@-end with