Eval

This warning category is spelled [eval] by qmllint.

Do not use eval

What happened?

You used eval in your code.

Why is that bad?

The eval method is slow and potentially dangerous. eval executes its argument as if it were its own JavaScript script, which adds some overhead to the execution. The argument passed to eval is potentially a vector for remote code execution attacks.

Example

import QtQuick

Item {
    function f() {
        let myString = "x",
        myObject = {
            x: 10
        },
        value = eval("myObject." + myString);
    }
}

To fix this warning, rewrite the code so that it doesn't contain any eval calls.

import QtQuick

Item {
    function f() {
        let myString = "x",
        myObject = {
            x: 10
        },
        value = myObject[myString];
    }
}