memo | 📓 Memo Life - Memo Life
kandi X-RAY | memo Summary
kandi X-RAY | memo Summary
You can use memo template using Go’s text/template format. A template receives the following attributes. The following is a template example to apply YAML Frontmatter. You can also use glidenote/memolist.vim’s template format like following.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of memo
memo Key Features
memo Examples and Code Snippets
Lines of Code : 21License : Permissive (MIT License)
Copyprivate static long makeChange(int[] coins, int money, int index, HashMap memo) {
if (money == 0)
return 1;
if (index >= coins.length)
return 0;
String key = money + "-" + index;
if (memo.containsKey(key)) {
return memo.get(key); Community Discussions
Trending Discussions on memo
QUESTION
I'm newbie to Reactjs. The problem I'm encountered:
When Article page loads in the first time, all is fine and there are 10 articles shown. When I click on the browser back button, and then I go to the Article page for the second time, the article-list will be duplicated (so, it will be 20 articles). If I do so again, it will be 30 articles and so on ..
I want to know, why the result of API call appends for the Redux and not replace? In other word, how can I clean the Redux on page load every time? The expected result is seeing always 10 item (articles) on the page Article when I open it.
Here is a simplified of the element (for navigating to the list of articles) in the main page:
...ANSWER
Answered 2022-Apr-16 at 08:11case ReducerTypes.GET_ALL_POSTS:
return {
...state,
posts: {
items: action.payload.items,
pagination: action.payload.pagination
}
};
QUESTION
I want to copy specific lines from a StringList, I want to copy all lines that have 'Domain Status:' into memo.lines.text I used the code below, but the problem is it copies only the first line, I want to copy all lines that have 'Domain Status:':
...ANSWER
Answered 2022-Apr-05 at 00:04You need to loop through the individual strings of the TStringList, the TStringList.Values[] property will not help you with this task, as it will only search for the 1st string with a matching name. You can, however, use the TStringList.Names[] and TStringList.ValueFromIndex[] properties to help you.
Also, you don't need the FieldNames[] array at all. Use a case-insensitive comparison, like SysUtils.SameText() instead.
Try something more like this:
QUESTION
I have following pandas dataframe df
...ANSWER
Answered 2022-Mar-27 at 02:32Based on the comments, it appear that memo_func is the main bottleneck. You can use Numba to speed up its execution. Numba compile the Python code to a native one thanks to a just-in-time (JIT) compiler. The JIT is able to perform tail-call optimizations and native function calls are significantly faster than the one of CPython. Here is an example:
QUESTION
I have been struggling with a performance problem in a React (React Native to be exact) app for days. It boils down to this problem:
When a Parent function component has another function component as the Child, the Parent will always re-renders whenever its own parent (GrandParent) re-renders. And this is true even if all components are memoized with React.memo.
It seems to be a fundamental problem for React, because in this common situation, HeavyParent will always re-renders whenever LightGrandParent re-renders, even if neither HeavyParent nor LightChild needs re-rendering. This is obviously causing a massive performance problem for our app.
ANSWER
Answered 2022-Jan-31 at 19:37In the structure you pasted witch is right below
QUESTION
I have a simple chat app using Firebase v9, with these components from parent to child in this hierarchical order: ChatSection, Chat, ChatLine, EditMessage.
I have a custom hook named useChatService holding the list of messages in state, the hook is called in ChatSection, the hook returns the messages and I pass them from ChatSection in a prop to Chat, then I loop through messages and create a ChatLine component for every message.
I can click the Edit button in front of each message, it shows the EditMessage component so I can edit the text, then when I press "Enter", the function updateMessage gets executed and updates the message in the db, but then every single ChatLine gets rerendered again, which is a problem as the list gets bigger.
EDIT 2: I've completed the code to make a working example with Firebase v9 so you can visualize the rerenders I'm talking about after every (add, edit or delete) of a message. I'm using ReactDevTools Profiler to track rerenders.
- Here is the full updated code: CodeSandbox
- Also deployed on: Netlify
ChatSection.js:
ANSWER
Answered 2021-Dec-13 at 23:35This is what I think, You are passing Messages in ChatSection and that means that when Messages get updated ChatSection will rerender and all its children will rerender too.
So here is my idea remove Messages from ChatSection and only add it in Chat.
You already using useChatService in Chat so adding Messages there should be better.
Try this and gets back too us if it working.
If still not as you like it to be there is also other way we could fix it.
But you have to create a working example for us so we could have a look and make small changes.
QUESTION
After updating the environment from Wildfly 13 to Wildfly 18.0.1 we experienced an
ANSWER
Answered 2021-Nov-05 at 14:19Probably its a Xnio problem. Look at this issue https://issues.redhat.com/browse/JBEAP-728
QUESTION
Reading the documentation of the python standard library copy module I stumbled across the following sentence:
The memo dictionary should be treated as an opaque object.
I understand that an opaque object usually is an object whose internals are unknown and which is only accessed via member functions.
What does being an opaque object mean for a simple data structure like a dictionary? And what do I have to pay attention to in the case of implementing __deepcopy__() for custom classes?
ANSWER
Answered 2021-Oct-06 at 17:19Read the sentence that precedes your quoted sentence.
If the
__deepcopy__()implementation needs to make a deep copy of a component, it should call the deepcopy() function with the component as first argument and the memo dictionary as second argument.
The idea is that your __deepcopy__ method should do nothing with a received memo dictionary except pass it to another call to deepcopy. Specifially, you should not
- Add any keys
- Remove any keys
- Modify the value of an existing key.
As far as you are concerned, the memo dictionary is an object whose internals are unknown (someday, it may not even be a dict!). Your only job is to pass it to any "recursive" calls to deepcopy.
QUESTION
I got stuck at enabling dark mode for my react/typescript element. I created a Context.Provider to switch light/dark mode for the entire app, but the toggle does not work at all. If anybody knows how to fix it, please help.
This is the ThemeContext and ContextProvider
...ANSWER
Answered 2021-Oct-06 at 00:32Thank you for the comment. I could fix it. It was just a small error of Toggle.tsx. The tailwind extends setting is also working fine.
QUESTION
I have a tabs component that changes state every time a different tab is clicked.
Component Parent
...ANSWER
Answered 2021-Aug-24 at 02:48This is an interesting one - I did some digging and found the following related React issues:
-
- This is the same issue that you are describing, from a comment there by Sebastian Markbåge it appears React requires the additional render to confirm that the two versions are the same:
This is a known quirk due to the implementation details of concurrency in React. We don't cheaply know which of two versions is currently committed. When this ambiguity happens we have to over render once and after that we know that both versions are the same and it doesn't matter.
- This is the same issue that you are describing, from a comment there by Sebastian Markbåge it appears React requires the additional render to confirm that the two versions are the same:
useState not bailing out when state does not change
This describes the same underlying concept - setting state to the same value may result in the functional component to running again. The key takeaway from them is the last comment from Dan Abramov on the second issue:
React does not offer a strong guarantee about when it invokes render functions. Render functions are assumed to be pure and there should be absolutely no difference for correctness regardless of how many times they're called. If calling it an extra time causes a bug, it's a problem with the code that needs to be fixed.
From the performance point of view, the cost of re-running a single function is usually negligible. If it's not, you should add some useMemos to the parts that are expensive. React does guarantee that if a bailout happens, it will not go updating child components. Even though it might in some cases re-run the component function itself.
So React doesn't gaurntee when it will invoke the functional component, and in this case it appears to run it the additional time checking that the result is the same.
The good news is that although it runs the function an additional time, from what I can tell it doesn't appear to actually rerender on the second invocation - if you use the React profiler, looking at the Flamegraph you can see the first time App renders due to the hook change:
QUESTION
Every time my tabs component parent rerenders, my child component rerenders as well.
My tabs component parent is the following
...ANSWER
Answered 2021-Aug-23 at 05:55The following import statement
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