kilogram | Email Development Framework | Email library
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QUESTION
I keep getting the following error: lib/main.dart:45:37: Error: A value of type 'Object?' can't be assigned to a variable of type 'String'.
- 'Object' is from 'dart:core'. _startMeasure = value;
Which makes complete sense but I have tried changing value into string but that doesnt fix the problem. I have tried "$value" and also _startMeasure = value as String. But, none of this works.
Code:
...ANSWER
Answered 2021-Jun-09 at 16:50Your dropdown button has no type so it thinks the value in the onChanged is Object? instead it should look like this:
QUESTION
Hi guys this question has been answered multiple times here , I did like to just get assistance on what I am doing wrong. I have a large dataset and I did like to categorize one column that has weights in kilograms into given labels. Here is how my dataset looks like:
...ANSWER
Answered 2021-May-31 at 19:01You need to specify the lower bound and upper bound in your bins. One quick way would be to use -inf
and inf
as the lower and upper bound:
QUESTION
i got array of objects that assigned in state and i want to modify a property with input field. I tried some below :
...ANSWER
Answered 2021-May-31 at 09:54You're directly modifying the object, which isn't allowed with React's state mechanism. Instead, you need to copy the object, not just the array it's in:
QUESTION
I'm currently making a web application with React front-end and Firebase back-end. It is an application for a local gym and consists of two parts:
- A client application for people who train at the local gym
- A trainer application for trainers of the local gym
The local gym offers programs for companies. So a company takes out a subscription, and employees from the company can train at the local gym and use the client application. It is important that the individual progress of the company employees is being tracked as well as the entire progress (total number of kilograms lost by all the employees of company x together).
In the Firestore collection 'users' every user document has the field bodyweight. Whenever a trainer fills in a progress form after a physical assessment for a specific client, the bodyweight field in the user document of the client gets updated to the new bodyweight.
In Firestore there is another collection 'companies' where every company has a document. My goal is to put the total amount of kilograms lost by the employees of the company in that specific document. So every time a trainer updates the weight of an employee, the company document needs to be updated. I've made a cloud function that listens to updates of a user's document. The function is listed down below:
...ANSWER
Answered 2021-May-28 at 12:18There are several points to adapt in your Cloud Function:
- Do
admin.firestore()
instead ofadmin.firestore
- You cannot get the data of the Company document by doing
companyRef.data()
. You must call the asynchronousget()
method. - Use a Transaction when updating the Company document and return the promise returned by this transaction (see here for more details on this key aspect).
So the following code should do the trick.
Note that since we use a Transaction, we actually don't implement the recommendation of the second bullet point above. We use transaction.get(companyRef)
instead.
QUESTION
Silly newby question here.
I have a php app that basically captures weight of disposed electronics daily. I am trying to display the weight in Kilograms (KG) for the day as a sum of all the weights captured. So if there are 10 rows, each with say 10KG, i want the total KG to display at 100KG.
Heres my code:
...ANSWER
Answered 2021-May-28 at 07:17Solution: MYSQL is case sensitive. Changed to mysql and it worked.
QUESTION
I have a reviews
table as follows:
What I want to select is the weight a r_id
's cannot exceed. So my desired output is
As you can see, r_id
4 wasn't included since it wasn't taking about the maximum weight and 6
wasn't included because it is in grams. I am struggling with two things.
- There are multiple phrases, how can I do a
OR
operator check in my regex column. - Sometimes the
kg
number is written like40kg
,40 KG
,40 k.g
or40kilos
. While all things arekilograms
, thekg
is written in different ways. How can I only extract the number (but ensuring thekg
is written in one of the above ways, so I don't accidentally extract something like4000g
.
ANSWER
Answered 2021-May-25 at 01:35You could just extract the number from the string. There only appears to be one and then check if the string looks like certain patterns:
QUESTION
I'm working on a watchOS App as my first Swift/iOS project ever. I want to fetch the latest body weight sample and use it for some calculation. The result is presented to the user. As soon as a new sample is added, I want to update my UI as well. It works in a completely fresh simulator installation. As soon as I add a sample in the iOS simulator, the app updates its UI in the watchOS simulator. However, it doesn't work on my real device or after resetting the watchOS simulator. And I just don't know why. The HKAnchoredObjectQuery
just returns 0
samples but I definitely have some samples stored in health. I can even see them under Settings > Health
on my watch. I can't imagine this is related to my code, but here it is:
ANSWER
Answered 2021-May-15 at 18:25Wow, after all this time I found the issue: The line previousAnchor = newAnchor
needs to be after the guard
statement. That's it.
QUESTION
I am trying to create a UNIT CONVERTER which is a GUI application in Python using Tkinter. I have created one main OptionMenu and two other OptionMenus. These other two OptionMenus are dependent on the main OptionMenu i.e.upon selecting a value from the main OptionMenu, the list of values in the other two OptionMenus changes. I have created two buttons "Convert" and "Reset". In the Reset Button, I am trying to reset the selections on all three OptionMenus.
Source Code
...ANSWER
Answered 2021-May-06 at 08:21You forget to pass updateSubLists
as the third argument of tk._setit(...)
inside resetEntries()
:
QUESTION
I am new to python, so I am sorry if there is an obvious solution. I am working on someones code which looks like this (with a total of 80 entries):
...ANSWER
Answered 2021-Apr-26 at 15:24Using A Dictionary
Like @deceze said, using a dict mapping the number to a tuple is one way. What you could do is set up the tuple like so: ("Name", "unit", "tag - optional")
. Then, you could take the size of the tuple to see if it has a tag or not. So, the dict would look like:
QUESTION
To streamline data wrangling, I write a wrapper function consisted of several "verb functions" that process the data. Each one performs one task on the data. However, not all tasks are applicable to all datasets that pass through this process, and sometimes, for certain data, I might want to switch off some "verb functions", and skip them.
I'm trying to understand whether there's a conventional/canonical way to build such workflow within a wrapper function in R. Importantly, a way that will be efficient, both performance-wise and concise code.
ExampleAs part of data wrangling, I want to carry out several steps:
- Clean up column headers (using
janitor::clean_names()
) - Recode values in the data, such that
TRUE
andFALSE
are replaced with1
and0
(usinggsub()
). - Recode string values to lowercase (using
tolower()
). - Pivot wider based on specific
id
column (usingtidyr::pivot_wider
) - Drop rows with
NA
values (usingdplyr::drop_na()
)
Toy data
...ANSWER
Answered 2021-Mar-03 at 14:04One way to do this would be
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