This function returns the data type of any given variable as a string.
The possible return values are listed in the table below:
| String | Description |
|---|---|
| "number" | The variable holds a real (floating point) number - this can include NaN and infinity |
| "string" | The variable holds a string |
| "array" | The variable references an array |
| "bool" | The variable holds a boolean (true / false) |
| "int32" | The variable holds a 32bit integer. This type isn't supported on HTML5. |
| "int64" | The variable holds a 64 bit integer |
| "ptr" | The variable holds a pointer |
| "undefined" | The variable is undefined |
| "null" | The variable holds a null value (this should not be seen normally) |
| "method" | The variable holds a function reference |
| "struct" | The variable holds a struct reference |
| "ref" | The variable holds an instance reference |
| "unknown" | Value is unknown. This should never be seen and signifies that something has gone wrong at the most basic level like a memory overwrite |
Please note that there are cases when this function may not return the correct value for a method. Consider the following two function definitions:
a = function()
{
// something
}
function b()
{
// Something
}
Technically, these are both considered methods as they are binding a function to an instance scope variable, however calling typeof on function b will return "number" and not "method", while calling it on a will return "method". This is due to the fact that methods created like the one for b are assigned script indices (which are integer values), since this is the way that the compiler recognises script functions, even if the function was not defined in a script.
typeof(variable);
| Argument | Type | Description |
|---|---|---|
| variable | Any | The variable to get the data type of. |
String (see table above)
var _str = typeof(global.ExtensionInput);
show_debug_message(" global.ExtensionInput is a " + _str);
The above code gets the data type held by the given global variable and returns the string to a local variable which is then used to output a message to the console.