E-Paper | Simple android drawing/canvas app optimized for e-ink screen | Canvas library

I'm trying to write a PCLMULQDQ-optimized CRC-32 implementation. The specific CRC-32 variant is for one that I don't own, but am trying to support in library form. In crcany model form, it has the following parameters:

width=32 poly=0xaf init=0xffffffff refin=false refout=false xorout=0x00000000 check=0xa5fd3138 (Omitted residue which I believe is 0x00000000 but honestly don't know what it is)

A basic non-table-based/bitwise implementation of the algorithm (as generated by crcany) is:

After a huge package upgrade, when running Jest tests on our application, we have this error :

I was trying to make a reusable component using react-native-paper

the problem comes when I try to use extends a type from the package

I am creating simple application using React-Native, I have problem with ScrollView, My aim is to send Ajax request when scroll ends, and it should happen only once, not every time when scroll ends, important note is that I only should use ScrollView, I am using onScroll event to measure and detect scroll position.

What I tried:

In react native cli i was trying to login but not working nd same thing working fine in expo nd this error is showing please let me know what can i do to do this???? i have added the action ,reducer,component page

getting error this //

WARN Possible Unhandled Promise Rejection (id: 2): Error: [AsyncStorage] Passing null/undefined as value is not supported. If you want to remove value, Use .removeItem method instead. Passed value: undefined Passed key: userToken checkValidInput@http://localhost:8081/index.bundle?platform=android&dev=true&minify=false&app=com.easylab&modulesOnly=false&runModule=true:146791:24 http://localhost:8081/index.bundle?platform=android&dev=true&minify=false&app=com.easylab&modulesOnly=false&runModule=true:146835:24..........................

my action is like this // actions>index.js page

I am using react-native-bouncy-checkbox and Flatlist.

I have created an array object which has id, name, amount.

So far I have achieved:

• User can select individual items from the Flatlist, and it will add the amount and display it as total amount.

• User can also edit the amount they have selected using TextInput.

However, I am trying to create a 'Select All' feature.

So, when user presses 'Select All' or taps on the 'checkbox' it should:

1. select all the items from the FlatList
2. add the total amount
3. allow user to edit all the selected amount individually
4. update the checkbox to show that it is selected.

So far I have tried getting all the 'checkbox' to show that it is selected when 'Select All' text is pressed or when 'checkbox' is pressed (beside select all text).

I have been trying to get this to work for the last couple of hours but couldn't manage to do it. So any help regarding this issue are most welcome.

CODE SNIPPETS AND APP SCREENSHOTS PROVIDED BELOW:

Code Sample:

i want to build a built a navigation with BottomTabNavigator but i dont know what happen i never see the body of my screens, something is hidding the body, i created a demo to demostrate you the wrong, but its too simple.

this is the file App.js

I have recently upgraded my app from SDK 40 to SDK 44 and came across this error App.js: [BABEL]: Unexpected token '.' (While processing: /Users/user/path/to/project/node_modules/babel-preset-expo/index.js)

Error Stack Trace:

i have the Invariant Violation: Native module cannot be null error and the 2nd error down below. I found online the issue might have to do with not having an ios folder in a module directory, i looked in each of the folders in the local system and on github with them all containing the ios folder