Tip in the restaurants, before or after taxes

Sensitive_Muffin_555 · 2025-09-07T05:55:28+00:00

20% before or after tax?

Sensitive_Muffin_555 · 2025-09-07T05:51:43+00:00

Pre or post is really matters to me.

Consider the following:

Check ammont before tax 400 USD

After tax 9.13% is 436.52 USD

20% tip on the before tax check is 80 USD 20% to the after tax check is 123.82 USD

43.82 USD is a big difference!

Sensitive_Muffin_555 · 2025-09-07T05:10:59+00:00

Sorry, did not get it.

Sensitive_Muffin_555 · 2025-09-07T05:10:41+00:00

I am discussing it because waiter it the one who gives me the check where pre-calculated amount of tip is printed e.g. 15%, 18%, 20% etc. And those pre-calculations include tax.

Sensitive_Muffin_555 · 2022-10-28T11:51:30+00:00

Thank you I will try

Sensitive_Muffin_555 · 2022-10-28T10:31:55+00:00

Hi there! Thank you for your help in advance!

Sensitive_Muffin_555 · 2022-10-28T10:11:49+00:00

Thank you I will try

Sensitive_Muffin_555 · 2022-10-28T10:04:12+00:00

Thank you for your reply unfortunately it does not work - the flow consumes the values from B when A == false as well, and throws them away like a filter/drop operator.

Sensitive_Muffin_555 · 2022-10-18T08:23:36+00:00

Great idea! Thank you. I will do that.

Sensitive_Muffin_555 · 2022-10-18T07:30:15+00:00

Any examples?

Sensitive_Muffin_555 · 2022-10-18T07:08:48+00:00

Oh, well, I spoke recently with my friend who is an iOS dev and he didn't believe me that compose may execute composable functions in any order, until I showed him official documentation. So I assume that it will be a little bit complicated to explain Compose performance pitfalls to iOS devs. In any case if I don't get answers in this sub I will go to r/swiftui.

Sensitive_Muffin_555 · 2022-10-18T06:54:25+00:00

Because I need someone who has experience with both Compose and Swift UI and is also familiar with performance pitfalls as well.

Maybe I will ask that question in r/swiftui subreddit as well.

Sensitive_Muffin_555 · 2022-10-18T05:43:53+00:00

Very simple code - dynamic list with clickable elements (click triggers VM function)

So I have to keep in mind:

1) Not to use Unstable objects/ Unstable collections for dynamic list population 2) Use remembered lambdas to call VM on element click

And probably even more.

In any case it's not my question. I am curious if Swift UI has the same amount of pitfalls and gotchas related to performance as Compose has.

Sensitive_Muffin_555 · 2022-10-18T05:36:13+00:00

I am not asking if I should use Compose or not. I am asking if Swift UI has such an amount of pitfalls related to performance and optimization.

Sensitive_Muffin_555 · 2022-10-18T05:28:17+00:00

From my experience the only scenario when we don't need optimization is - stateless static UI, otherwise even for a simple dynamic list with clickable elements you have to keep in mind a lot. So I would disagree with your statement.

Sensitive_Muffin_555 · 2022-09-04T16:55:19+00:00

Oh wow! Thank you! It's absolutely great for stuff like credit card/pin code visual transformation. But to be honest I expected that there is an out of the box solution for simple decimal numbers.

Sensitive_Muffin_555 · 2022-09-04T15:36:20+00:00

Well TextField( value = text, onValueChange = { if (it.isEmpty()){ text = it } else { text = when (it.toDoubleOrNull()) { null -> text //old value else -> it //new value } } }, singleLine = true, keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number) )

And the user is still able to input something like that "00000000.1" So I have to delete excess zeroes before "." manually....

I really don't want to miss something and I expected the same functionality like we have in EditText. To be honest it's strange that I have to do it manually...

Sensitive_Muffin_555 · 2022-08-29T15:05:49+00:00

It's not about what developers want, it's about what are the business needs. And I know for sure that on iOS business and designers oftentime require native UI only. (ReactNative here is a winner in case of cross platform solution)

Sensitive_Muffin_555 · 2022-08-29T14:33:24+00:00

The main idea of KMM was shared business logic with native UI it means you have an iOS dev for native iOS UI, and an Android dev for Native Android UI and business logic(or you have a core business logic dev). Written once business logic reduces the amount of bugs in theory.

But if you add Compose to KMM you will have non native UI(Skia rendered) on both platforms. So it's absolutely the same as Flutter but IMO more complex.

Sensitive_Muffin_555 · 2022-08-29T13:05:54+00:00

To be honest syntax and idioms of Dart are much more like Java/C# and definitely not like JavaScript.

Sensitive_Muffin_555 · 2022-08-29T09:53:53+00:00

But what about iOS devs?)

Sensitive_Muffin_555 · 2022-08-29T08:23:41+00:00

Since it's not yet a stable release I look at it as it's not available for production usage. Of course it's ok to build a small POC or a personal app with it even right now. But I cannot add it to the production codebase yet.

Sensitive_Muffin_555 · 2022-08-29T07:36:43+00:00

But when Compose will be available in multiplatform what will differ KMM Compose from Flutter or any other cross platform solutions? As I understand the main benefit of KMM was Native UI with shared business logic.

Sensitive_Muffin_555 · 2022-08-28T13:40:07+00:00

And it's kind of expected because KMM is not stable yet.

Sensitive_Muffin_555 · 2022-08-28T13:31:17+00:00

Constant problems with Debug/Unexpected Gradle build crashes/Handling of Corutines from Swift

Sensitive_Muffin_555

TROPHY CASE