Type check functions
isDate
The isDate() function takes an expression as an argument, and returns true if it is a valid date-time value. Otherwise, it returns false.
Return Type
BOOLEAN
Syntax
- <variable> = isDate(<expression> );
(or)
- <variable> = <expression>.isDate();
Examples
- dateString="01-Jan-2019";
- dateValue='01-Jun-2020';
- numValue=100;
-
- boolValOne=isDate(dateString);//returns true
- boolValTwo=isDate(numValue);// returns false
- boolValThree=dateValue.isDate();// returns true
isFile
The isFile function takes a file object as an argument and returns true if it is a valid file. Otherwise, it returns false.
Note:
- The file object should be available in the cloud.
- Offline files are not supported.
Return Type
BOOLEAN
Syntax
- <variable>=<file_object>.isFile();
(OR)
- <variable>=isFile(<file_object>);
where,
Examples
- file_object=invokeUrl
- [
- url:"http://www.thenonlinearpath.com/wp-content/uploads/2016/05/GoodVibesOnly.png"
- type:GET
- ];
- if(file_object.isFile()){
- // Do something
- }
isNumber
The isNumber() function takes an expression as an argument, and returns true if it is a valid numerical value. Otherwise, it returns false.
Return Type
Boolean
Syntax
- <variable> = isNumber( <expression> );
(or)
- <variable> = <expression>.isNumber();
- Valid numerical values in single or double quotes will return true.
- List and Key-value data type will always return a null value.
Examples
- numValue=isNumber("12.3");// returns true
- numValue="1".isNumber();// returns true
- numValue=24.isNumber();// returns true
- numValue=(24/2*10).isNumber();// returns true
- numValue="24/2*10".isNumber();// returns false
isText
The isText() function takes an expression as an argument, and returns true if it is a valid text value. Otherwise, it returns false.
Return Type
BOOLEAN
Syntax
<variable> = isText( <expression> );
Examples
- textValue=isText("Hello");//returns true
- numberText=isText("123");//returns false
- dateText='01-02-2020'.isText();//returns false
- empty=isText(""); //returns true
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