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Created page with "var.'''recall''' is a function that is part of the Var Library. <br> The function returns a the content of a math variable in the current document. It tries to return th..."
var.'''recall''' is a function that is part of the Var Library.
<br>
The function returns a the content of a math variable in the current document. It tries to return the value in a compatible Lua type. If there is no compatible type, it returns nil and an error message.<br>
== Syntax ==
var.'''recall(varname)'''<br> returns the content of the variable varname (must be a string).
== Example ==
<source lang="lua">
function on.paint(gc)
variable = var.recall("sol") --assuming that sol exists
gc:drawString("The diameter of the sun is " .. tostring(variable) .. " KM", 10, 10, "top")
end
</source>
This code retrieves the content of the variable sol (number), and prints it on the screen.
== See also ==
*[[var.list]]<br>
*[[var.recallstr]]<br>
*[[var.store]]<br>
*[[var.monitor]]<br>
*[[var.unmonitor]]<br>
[[Category:var]]
<br>
The function returns a the content of a math variable in the current document. It tries to return the value in a compatible Lua type. If there is no compatible type, it returns nil and an error message.<br>
== Syntax ==
var.'''recall(varname)'''<br> returns the content of the variable varname (must be a string).
== Example ==
<source lang="lua">
function on.paint(gc)
variable = var.recall("sol") --assuming that sol exists
gc:drawString("The diameter of the sun is " .. tostring(variable) .. " KM", 10, 10, "top")
end
</source>
This code retrieves the content of the variable sol (number), and prints it on the screen.
== See also ==
*[[var.list]]<br>
*[[var.recallstr]]<br>
*[[var.store]]<br>
*[[var.monitor]]<br>
*[[var.unmonitor]]<br>
[[Category:var]]
