oba | Observe any object 's any change | Reactive Programming library
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kandi X-RAY | oba Summary
Observe any object's any change
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QUESTION
if have a vector (given) of words and I want to add the words to another vector, when a string starts with a vowel:
...ANSWER
Answered 2020-Jun-17 at 16:57You may use grepl here:
QUESTION
I need some help to improve part of my code (I'm a beginner). I have a big database (flussi_coord) with a column containing the name of different regions. Each region is associated with a warehouse, and I need to add two columns with its coordinates to flussi_coord; these are contained in another matrix called coord_oba. oba is just a list of the regions, created with levels(flussi_coord$oba).
The solution I came up with works, but it is terribly slow. For every row of flussi_coord, I check if there is correspondence with a name in oba; if true, I paste longitude and latitude of the warehouse in two vectors, which are later on added to the flussi_coord.
...ANSWER
Answered 2020-Feb-05 at 23:40Assuming that the datasets are data frame, this should work:
QUESTION
We are using .Net Core 2.0 version to call an external SOAP service.
Related call method is:
...ANSWER
Answered 2020-Jan-12 at 13:59async void outside of an event handler is fire and forget
Reference Async/Await - Best Practices in Asynchronous Programming
which is probably why the context may have gone out of scope and aborted
The method should be refactored to return Task
QUESTION
I am trying to ask the user for 3 different strings, if the second string is a part of the first string it will replace that part with the third string. In addition to this, I must use pointer arithmetic to index through any arrays/strings. For example:
...ANSWER
Answered 2019-Oct-23 at 13:29You check some of the conditions., If pattern string was found in the original string, then check size_of(s2) with size_of(s3). if s3 >= s2 , then simply remove pattern string from original string and replace it with s3. Else case find the size difference between s3 and s2 and then remove pattern string from original string only with that size difference..Finally replace that place with s3.Hope This might helps:)
QUESTION
If I use MutableSet with sealed class, the MutableSet accept all duplicated content.
Sample:
...ANSWER
Answered 2019-Aug-12 at 21:07A MutableSet checks whether it contains an element by using the elements' equals checks and, depending on the implementation, hashCode. A HashSet, for instance, uses hashCode to store and quickly lookup the elements in a hash table.
The two subclasses of the sealed class in your example don't override the equals function and therefore provide the default equality check implementation, which is identity equality (i.e. an object is only equal to itself, and different objects are never equal even if their properties are equal).
To achieve uniqueness of LoginSavedCommand items within a MutableSet, you need to ensure the subclasses provide proper equality check implementation.
A simple way to do that is to make both subclasses data classes, so that the compiler generates the equals and hashCode implementations based on the properties:
QUESTION
I am trying to remove the duplicate values from a deeply nested array. I've put the structure of the database down below. I want to compare the location of the steps with eachother and check for duplicates. I was thinking about using db.collection.aggregate, but it becomes a problem when trying to search through all steps since { $unwind: '$mapbox.routes.legs.0.steps' } requires a specific index for the steps as far as i know.
ANSWER
Answered 2019-May-22 at 14:43At the end I stopped making a seperate file for connecting with mongodb and cleaning the database and started using the already existing API to create a call. In this call I looped through the steps in the database and mapped the location to a key. After that I check if that key already existed and pushed that index to a duplicate array.
Then I proceeded to loop through the duplicate list and spliced the duplicate entries from the list with steps. After that I ran the following function to update the entry: await routeSchema.updateOne({ _id: route._id }, { $set: route });
QUESTION
Compare 2 objects and return true only if two values are the same. If they are more than two same values or all or none return false. Example:
...ANSWER
Answered 2019-Mar-07 at 16:37You can use reduce
Here idea is
- Get keys of one object.
- Match values of both object for each key if they are equal increment op by
1and if not just returnopwithout any change. - In the end just check if the
op === 2returntrueelse returnfalse
QUESTION
I have nested PHP Arrays decoded from a JSON String. I am trying to capture the value of the property "dealname" and save it to a variable. The Issue is I am not able to Iterate correctly over the array.
The Array appears to be in this format
Array ( [results] => Array ( [0] => Array ( [portalId] => 62515 [dealId] => 291809941 [isDeleted] => [associations] => Array ( [associatedVids] => Array ( [0] => 6810424 ) [associatedCompanyIds] => Array ( ) [associatedDealIds] => Array ( ) ) [properties] => Array ( [dealname] => Array ( [value] => Leaky faucet in LA [timestamp] => 1525454097337 [source] => API [sourceId] => [versions] => Array ( [0] => Array ( [name] => dealname [value] => Leaky faucet in LA [timestamp] => 1525454097337 [source] => API [sourceVid] => Array ( ) ) ) ) [hs_lastmodifieddate] => Array ( [value] => 1525454103922 [timestamp] => 1525454103922 [source] => CALCULATED [sourceId] => [versions] => Array ( [0] => Array ( [name] => hs_lastmodifieddate [value] => 1525454103922 [timestamp] => 1525454103922 [source] =
In this case, I would like to get the value of the dealName "Leaky faucet in LA" . I have written some code which does not achieve the purpose-
...ANSWER
Answered 2018-May-04 at 21:51Your JSON contains a results array with a bunch of objects in it. You don't need nested loops. You only need one loop to iterate that results array. To get the value you want from each of the objects, you just have to use the appropriate syntax to access that property nested within it.
QUESTION
Ok so my question is how to setup a generic function inside of a Javascript object using the constructor pattern that will take the object instance's data as parameters?
For instance:
...ANSWER
Answered 2018-Feb-19 at 01:57The way you're talking about these "sets of data", this screams object to me.
Don't use prefixed or enumerated properties to indicate that they belong together. Use a proper Object or an Array. In this case, something like this.objA = {value: 0, inc: 1, max: 10}.
And if this function always operates on one of these objects, and doesn't seem to have any other relationship to ObjTest, then maybe it's not a method of ObjTest, but instead a method of these objects. And would be better off on them.
QUESTION
I am developing website www.deks.org.rs and there I have two important forms.
Before all, when I say "form works" it means that form data is sent on e-mail I wrote in .php file in the background. When I say "form doesn't work" it means that I can't get data from this form on given e-mail.
Form "Pisanje sazetaka" works, but form "Prijava" don't. How I can solve this problem?
Code for first working form:
...ANSWER
Answered 2018-Feb-07 at 15:08From your code for the second form :
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