armin | Declarative state machines for React | State Container library
kandi X-RAY | armin Summary
kandi X-RAY | armin Summary
So in the example above, we also use the value property to give the machine a value to keep track of. This can be any javascript value including strings, numbers, objects and functions. The effects key is where we define async actions for our state machine. All async actions have access to the reducers defined in the reducers key. They are bound to the controller hence, this.increment is perfectly valid inside an async action. This means that, while all reducers are synchronous, you can create async actions and call the reducers within them as and when needed. This was inspired from Rematch. Here our machineController object has two special keys can and is. can tells us whether a particular reducer action is valid for the state the controller is in. This is automatic and is derived from the reducer configuration given during machine creation. is just tells us if the machine is in a particular state or not. For eg: machineController.is.stopped etc. These are handy when you want to control the views by disabling/enabling input, permissions etc. Now, let's take a more complex example.
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QUESTION
i have the following test-code here
...ANSWER
Answered 2021-Jun-07 at 10:01This is easy to do if you convert the data to dataframes.
QUESTION
I am trying to formulate a query for a business scenario where we have a nested field type named "types"(i.e like ArrayList of strings). Below are the sample indexed documents with "types" as one of the fields.
Document 1: { "types" : [ { "Label" : "Dialog", }, { "Label" : "Violence", }, { "Label" : "Language", } }
Document 2: { "types" : [ { "Label" : "Dialog", } }
Now, the requirement is that the search query should match at most one value within the field values i.e if a user searches for "Dialog", then it should return only Document 2 and not Document 1 because it has other values present in the field. Basically, it should only get those records that match exactly with the single search query value excluding all the other values present in the field.
Below is the Mapping:
...ANSWER
Answered 2021-May-22 at 02:12You need to use script_score along with the function score query.
Try out this below query
QUESTION
I would like to create a graph. To do this, I have created a JSON file. The Skills (java, python, HTML, json) should be the links and the index (KayO, BenBeck) should be the nodes. Also the node must not fall below a certain minimum size and must not become too large.
After that, I would like to be able to call up the list of publications on the right-hand side by clicking on the node. The currently selected node in the visualisation should be highlighted.
I have already implemented from this example (https://bl.ocks.org/heybignick/3faf257bbbbc7743bb72310d03b86ee8). But unfortunately I can't get any further.
The error message I always get is:
Uncaught TypeError: Cannot read property 'json' of undefined
This is what my issue currently looks like:
The JSON file:
...ANSWER
Answered 2021-May-15 at 14:59Your JSON file should be of format:
QUESTION
When I use try before the function, it raise error. but if I use it in the function it will be fine. why?(what is the order of evaluation of these codes? ). Any help is appreciated.
...ANSWER
Answered 2021-Apr-14 at 15:05The try in your first example is not evaluated when the function is being called, only when the function is first being defined, at which point there are no exceptions being raised.
It's not until you actually call the function with arguments where the key doesn't exist in the given dictionary that an exception is actually raised and that try/except clause isn't being evaluated then.
Your second example is the correct way to do what you're trying to do:
QUESTION
I have DataFrame df1 :
ANSWER
Answered 2021-Mar-19 at 14:29You can use map, but you need to remove duplicate values in s2:
QUESTION
I am trying to create lists from json datas by pulling one by one and append them to the lists. However, some variables does not given in all json files. For example: for the json file below, data does not have ['statistics']['aerialLost'] , so it return Key Error. My Expected solution is when json file does not have key, append 'None' value to the list and continue.
Code
...ANSWER
Answered 2021-Feb-18 at 20:20Use .get(). You can specify a default value to return if the key is not found, and it defaults to None.
So you can use
QUESTION
I have a problem with changing my variable based on a selected value.
...ANSWER
Answered 2021-Feb-02 at 10:34Your check for Material fehlt is not right. Use
QUESTION
I have problem in my code. I should display name of the programmers and the languages in an array that they know and at the end I should print the count of how many of them know the language JAVA. My count method prints the numbers separately but not the total one. Can you please explain the reason?
...ANSWER
Answered 2021-Jan-07 at 20:12Don't define this method in your class.
Counting how many of your developers have the skill JAVA has nothing to search in your developer class.
Solution- Write a function(outside of your developer class) which takes as argument an array of developers.
- Loop through the developers and check for every developer if his languages contain the language JAVA.
- If yes increment your counter.
- Then display the counter as amount of developers which have the skill JAVA.
The Function
QUESTION
Good Evening, I'm having trouble trying to read this kind of XML.
...ANSWER
Answered 2020-Dec-02 at 02:17You can use DomParser in JavaScript to parse the XML. To get the attributes inside the tag, you can use methods like .getAttribute()
QUESTION
I try to create a powershell script, to perform a few steps:
- In a specific folder, I put a .xlsx file, it converts it to csv. Until now I got this:
ANSWER
Answered 2020-Nov-20 at 13:43If as you say in your comment, your Excel already creates a csv with the semi-colon as delimiter, you can do this inside the loop, just below $workbook.Close()
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