是否有任何内置方法可以将 JavaScript 对象的属性更改为某个值？

我想将JavaScript对象的所有属性值更改为某个值（在这种情况下为false）。我知道如何通过单独更改它们（示例A）或使用循环（示例B）来做到这一点。我想知道是否有其他内置方法可以做到这一点，推荐的方法是什么（主要是在速度方面，或者是否有其他副作用）？

伪码：

// Example object
Settings = function() {
    this.A = false;
    this.B = false;
    this.C = false;
    // more settings...
}
// Example A - currently working
updateSettingsExampleA = function(settings) {
    // Settings' properties may not be be false when called
    settings.A = false;
    settings.B = false;
    settings.C = false;
    while (!(settings.A && settings.B && settings.C) && endingCondition) {
        // code for altering settings
    }
}
// Example B - currently working
updateSettingsExampleB = function(settings) {
    // Settings' properties may not be be false when called
    for (var property in settings) {
        settings[property] = false;
    }
    while (!(settings.A && settings.B && settings.C) && endingCondition) {
        // code for altering settings
    }
}
// possible other built in method
updateSettingsGoal = function() {
    this.* = false; // <-- statement to change all values to false
    while (!(this.A && this.B && this.C) && endingCondition) {
        // code for altering settings
    }
}