上次更新日期：
2022年1月20日
|
也应用至 ColdFusion
Description
Determines whether a value is an object.
Returns
True, if the value represents a ColdFusion object. False if the value is any other type of data, such as an integer, string, date, or struct.
Category
Syntax
IsObject(value)
See also
History
ColdFusion MX: Added this function.
Parameters
Parameter |
Description |
|---|---|
value |
A value, typically the name of a variable. |
Usage
This function returns False for query and XML objects.
Example
Sample Code 1:
index.cfm
<cfscript>
obj = new Comp()
obj.returnsString();
writeOutput(isObject(obj)) // Returns True
</cfscript>
Sample Code 2:
comp.cfc
component {
static function returnsAny(){
return "G'day world" ;
}
function returnsString(){
writeOutput("Hello World");
}
}
<cfscript>
random = createObject( "java", "java.security.SecureRandom" ).getInstance("SHA1PRNG");
writeOutput( isObject( random ) );
example = { 'name' = 'I am a struct' };
writeOutput( isObject( example ) );
</cfscript>
Output
YES
NO
