jsexecutor class : Execute(string,bool) method
Description
Executes JavaScript code.
Syntax
instance.Execute(string jscode, bool complement)
Arguments
| Class | Name | Description |
| string | jscode | JavaScript code. |
| bool | complement | Whether to make it to the immediate function. |
Return value
| Class | Description |
| string | Return value from the JavaScript. |
Sample code
| 1: | jsexecutor jse; // For Main-browser |
| 2: | string result = jse.Execute("alert('hello world!');", true); // It show dialog and return "null". |
| 3: | result = jse.Execute("return 'hello world!';", true); // It occur an exception and return "null". |
Notes
In the second argument, specifies whether to complemented the JavaScript code to the Immediately Invoked Function Expression, IIFE.
If true, it will be complemented. If false, it will not be complemented.
When it is complemented, it will be as follow.
return 'result'; -> (function (token){return 'result';}("0f8fbd59d9cb769fa16570867728950e"));
Please be careful, you may get the unexpected result depending on the complement.
For the method of IIFE, Please refer to Execution of JavaScript code: IIFE.
Please note that the return value is string.
If the result is a number, the number will be returned as a string. Example: 1-> '1' , 1.05-> '1.05'.
If the result is a boolean value, the value is returned as a string. Example: true -> 'true' / false -> 'false'
If the result is a string, the string will be enclosed in double quotes and returned. Example: 'Returned string' -> '"Returned string"'.
If the result is null, undefined, array, object, function object, or unevaluable, the string 'null' is returned.
The 'null' is also returned if the run raises an exception.
Links for reference
None.