如何在Jint解釋器中解析JavaScript代碼？

Question

我要確保JavaScript代碼是有效的語法：

string test = " var i = 0; "; 
Jint.Engine ScrptingEngine = new Jint.Engine(); 
bool result = ScrptingEngine.Parse(test); 

Answer 1

可以使用Execute()法「解析」你的JavaScript和GetValue()方法來檢索值，然後斷言它按預期工作。

string test = " var i = 0; "; 
Jint.Engine ScrptingEngine = new Jint.Engine(); 
var result = ScrptingEngine.Execute(test).GetValue("i"); 
Assert.AreEqual(0, result); 

此外，Execute方法也將引發JavaScriptException如果JavaScript是無效的：

try 
{ 
    ScrptingEngine.Execute("xx = ss == esfx = fuct()"); 
} 
catch(JavaScriptException ex) {} 

Answer 2

如果添加了腳本的對象不應該運行任何代碼。

var myscript = @" 
var badFunction = function(){/* please don't run this*/ } 
badFunction();" 

new Engine().Execute("var noRun = {" + myscript + "}"); 

雖然腳本本身不會破壞對象封裝，但並不能保證。