I’m encountering an issue with a JavaScript code that imports and executes a dynamic module. The code appears to be correct, but I get the error “unexpected end of input”. Here is the relevant code snippet:
async createDynamicFunction(moduleCode) {
let fnResult;
const blob = new Blob([moduleCode], { type: 'application/javascript' });
const url = URL.createObjectURL(blob);
try {
const module = await import(url);
fnResult = module.fnSomeFunction;
} catch (error) {
console.error(error);
} finally {
URL.revokeObjectURL(url);
}
return fnResult;
}
The moduleCode parameter contains the following code:
export function fnSomeFunction(data) {
class SomeType {
constructor(param1, param2, param3, param4, param5, param6) {
this.field1 = param1; // some value
this.field2 = param2; // some value
this.field3 = param3; // some value
this.field4 = param4; // some value
this.field5 = param5; // some value
this.field6 = param6; // some value
}
static dictSomeType = {
"X.1": new SomeType("X.1", "1000", "Value A", "Description A", "Category A", "Detail A"),
"X.2": new SomeType("X.2", "2000", "Value B", "Description B", "Category B", "Detail B"),
// more entries...
};
}
let outData = {};
if (data.hasOwnProperty("prop1")) {
let prop = data["prop1"];
if (SomeType.dictSomeType.hasOwnProperty(prop)) {
let dict = SomeType.dictSomeType[prop];
outData["fieldB"] = dict.field3;
outData["fieldC"] = dict.field4;
outData["fieldD"] = dict.field5;
outData["fieldE"] = dict.field6;
}
}
return outData;
}
Problem:
The error occurs when importing the dynamic module. It seems like the error “unexpected end of input” indicates that the code is incomplete or there is a syntax issue. I’ve reviewed the code and it looks correct, but the error persists.
Additional Information:
A shorter function with similar logic works correctly, so the issue might be related to the length or complexity of the code.
Questions:
Are there any hints as to why the “unexpected end of input” error might occur?
Are there specific requirements or constraints when dynamically importing JavaScript modules that I should be aware of?
Are there any tips for debugging or best practices to resolve this error?