Function keysCommand

modules/script/_bootstrap/debugger.js:443–470

(rest)

expressions, or $$ for the most recently printed expression.`;

function keysCommand(rest) {
    if (!rest) {
        print("Missing argument. See 'help keys'");
        return;
    }

    const result = evalInFrame(rest);
    if (!result)
        return;

    const dv = result.value;
    if (!(dv instanceof Debugger.Object)) {
        print(`${rest} is ${dvToString(dv)}, not an object`);
        return;
    }
    const names = dv.getOwnPropertyNames();
    const symbols = dv.getOwnPropertySymbols();
    const privateFields = dv.getOwnPrivateProperties();
    const keys = [
        ...names.map(s => `"${s}"`),
        ...symbols.map(s => `Symbol("${s.description}")`),
        ...privateFields.map(s => `${s.description}`),
    ];
    if (keys.length === 0)
        print('No own properties');
    else
        print(keys.join(', '));
}
keysCommand.summary = 'Prints own properties of the given object';
keysCommand.helpText = `USAGE
    keys <obj>