focused | Yet another Optics library in JavaScript | Functional Programming library
kandi X-RAY | focused Summary
kandi X-RAY | focused Summary
Yet another Optics library for JavaScript, based on the famous lens library from Haskell. Wrapped in a convenient Proxy interface.
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Top functions reviewed by kandi - BETA
- Produces a function
- Given a property get it and return it .
- Returns a function that takes a specific name of a single object .
- Create a lens proxy .
- Creates a function which recursively at the given key .
- Creates a new Prism .
- Compose two matrices
- Creates a curry function from 3 arguments
- Inserts an element at the end of the beginning of the end of the array
- Compose two arguments
focused Key Features
focused Examples and Code Snippets
Lines of Code : 2
License : No License
Copyconst isBrowserTabFocused = () => !document.hidden;
isBrowserTabFocused(); // true
const elementIsFocused = el => (el === document.activeElement);
elementIsFocused(el); // true if the element is focused
// setting up standard appearance for the first time
private func setupTabbarAppearance() {
let tabBarAppearance = UITabBarAppearance()
//...
tabBarAppearance.selectionIndicatorTintColor = .focusedBackground
Codepedia.info
Html to canvas, and canvas to proper image
Codepedia.info is a programming blog. Tutorials focused on Progra
router.post('/register-user', multer_profile_pic.any(), (req, res, next) => {
var uniqueUser = true; //----> This value is being focused
const user = req.body;
var query = `SELECT * FROM users WHERE email=$1`;
var values import * as React from 'react';
import {NavigationContainer} from '@react-navigation/native';
import {createStackNavigator} from '@react-navigation/stack';
import {createBottomTabNavigator} from '@react-navigation/bottom-tabs';
import Ioni[Code]
function SetTimer(hWnd: LongWord; nIDEvent, uElapse: LongWord;
lpTimerFunc: LongWord): LongWord; external 'SetTimer@user32.dll stdcall';
var
LastFocusedControl: TWinControl;
HiddenButton: TButton;
CustomButton: TBitmapImagdocument.body.onload = function() {
// the input field
var $input = document.querySelector("input[type='search']"),
// clear button
$clearBtn = document.querySelector("button[data-search='clear']"),
// prev button
$preimport React, {useState, useRef, useEffect} from 'react';
import { useCallback } from 'react';
import {StyleSheet, Text, View, FlatList, TouchableOpacity} from 'react-native';
import YouTubeIFrame from 'react-native-youtube-iframe';
consimport Ionicons from 'react-native-vector-icons/Ionicons';
import { createAppContainer } from 'react-navigation';
import { createBottomTabNavigator } from 'react-navigation-tabs';
export default createBottomTabNavigator(
{
Home: HomCommunity Discussions
Trending Discussions on focused
QUESTION
I have a BasicTextField in one of my views. I am showing the soft keyboard by default and when I start typing letters on the keyboard, nothing is shown in the BasicTextField, since it has no cursor.
To make my keyboard actions visible, I have to tap into the TextField, to make the cursor visible. Now, whenI tap on the keyboard, I see the result in the BasicTextField.
How can I open the BasicTextField with an active blinking cursor in it?
EDIT: the proposed solution from here did not work for me
...ANSWER
Answered 2022-Mar-18 at 20:21I got it working:
QUESTION
I'm learning React and I know this subject has been covered by many questions, but they all are focused on the asynchronous nature of useState. I'm not sure if that's what's happening here. I also tried a version in combination with useEffect, and the result was the same.
I have a component where I'm listening to keypresses - user is trying to guess a word. Once the word is guessed, the word object is supposed to be replaced with another one and a new puzzle begins.
The component renders using the correct state (characters of the new word), but when trying the first guess of the second puzzle, the word object is still the original state object.
How can I update this word object correctly?
Steps to reproduce in the readme.md:
...ANSWER
Answered 2022-Feb-21 at 09:04It's hard to debug without a codesandbox but I'm guessing since you want the useEffect to trigger when you do
setRenderedCharacters([...word.renderedCharacters]);
You should add renderedCharacters as the dependency
QUESTION
I need to calculate the square root of some numbers, for example √9 = 3 and √2 = 1.4142. How can I do it in Python?
The inputs will probably be all positive integers, and relatively small (say less than a billion), but just in case they're not, is there anything that might break?
Related
- Integer square root in python
- Is there a short-hand for nth root of x in Python?
- Difference between **(1/2), math.sqrt and cmath.sqrt?
- Why is math.sqrt() incorrect for large numbers?
- Python sqrt limit for very large numbers?
- Which is faster in Python: x**.5 or math.sqrt(x)?
- Why does Python give the "wrong" answer for square root? (specific to Python 2)
- calculating n-th roots using Python 3's decimal module
- How can I take the square root of -1 using python? (focused on NumPy)
- Arbitrary precision of square roots
Note: This is an attempt at a canonical question after a discussion on Meta about an existing question with the same title.
...ANSWER
Answered 2022-Feb-04 at 19:44math.sqrt()
The math module from the standard library has a sqrt function to calculate the square root of a number. It takes any type that can be converted to float (which includes int) as an argument and returns a float.
QUESTION
I have a somewhat weird question where I don't actually know the correct terminology so if I incorrectly state something please correct me so I can better ask this question. Right now I guess I'm more focused on Android since I have one and can easily emulate and test, but eventually I would like to get it to work on iOS.
Goal: Launch a PWA (Progressive Web App) which was added to the home screen of my device through the A2HS (Add To Home Screen) from another application.
So I currently have two PWA added to my home screen through google chrome, called PWA1 and PWA2. These are URLs that when accessed VIA chrome I can add to my home page through A2HS and when I open it, it functions and looks just like an app.
- MyApp - Android/iOS app Xamarin
- PWA1/2 - Progressive Web App added to home screen using Google Chrome's A2HS
I am currently working on another app right now called MyApp, and I would like to know how I can launch my PWA1 and PWA2 from within MyApp. I know I am able to launch other apps installed on my device using PackageManager and intent to launch the app but since these aren't actually real apps I have no idea how to access the ones that are saved to my home screen.
I'm pretty sure I can implement the button on my app opening com.android.chrome but that would just open the chrome app not specifically the PWA on my home screen. So how would I go about doing this?
My first train of thought is that somewhere on the Android OS or in Chrome there is a lookup of the available PWA added to the home screen. If I am able to find that I was hoping there was a way to specify to chrome or the PackageManager that I want to launch com.android.chrome:PWA1 and it will load the one that was added to my home screen.
Any feed back on whether this is possible, or what I should clarify would be greatly appreciated!
...ANSWER
Answered 2022-Feb-17 at 02:20I have triggered the prompt to choose to open the link from PWA or the browser.
I'm using Custom Tab from Chrome, you can read implementation here.
Something like this:
QUESTION
I've just created a small search bar component that appears/disappear when clicking on an icon. It hides and shows (changes opacity and width) with a nice animation based on if the input is focused or not.
Here is the code that works perfectly:
...ANSWER
Answered 2022-Jan-29 at 19:50When you do something like:
QUESTION
I'm trying to implement an efficient segmented prime sieve in C. It's basically a sieve of Eratosthenes, but each segment is split to a size that can well fit in cache.
In my version, there is a bit array of flags in which each bit is a consecutive odd number. Each bit is erased by masking with AND when it is a multiple of a known prime number.
This single part of code consumes about 90% of runtime. Each dirty bit of code has a reason for it that I explained in comments, but the overall operation is very simple.
- Grab a prime number.
- Calculate its square and its multiple that is slightly bigger than the number that the starting point of the cache block represents.
- Take the bigger one.
- Erase the bit, add the base prime number to itself two times, and repeat until the end of the cache block.
And that's it.
There is a program called primesieve which can do this operation very fast. It is about 3 times faster than my version. I read its documentation about the algorithm and also its code, and applied whatever is plausible to my code.
Since there is a known program a lot faster than mine, I will investigate further what they're doing and what I'm not, but before that, I posted this question to get extra help if you can help me find out which part is not running efficiently.
Saying again, this single routine consumes 90% of runtime, so I'm really focused on making this part run faster.
This is the old version, I've made some modifications after the post, and that one's below this one. The comments still apply.
...ANSWER
Answered 2022-Jan-16 at 20:45You might be sieving, but what about counting? And a upper limit, so one can compare? And OMP like primesieve?
You are stuck because you are not even counting or comparing, only with yourself.
I made a segmented sieve just with a 30Kb char array. At 2 billion, it takes quite exactly 3 times as long as primesieve, and works with OMP. So all your bit mapping and unrolling is not measurable.
QUESTION
I'm wanting to use Bootstrap's "Floating Label" and "Input Group" components together. The trouble I'm having is that the label is hidden when the input is focused. In my code example below, I have these scenarios:
- Both components (see that the label disappears when clicking in the input).
- Floating label only
Does anyone know of a way to make these components work together?
...ANSWER
Answered 2021-Aug-09 at 20:10Place the floating label inside another input-group div.
QUESTION
I created a music database application a few years ago in C++ (Code::Blocks + wxWidgets + SQLAPI++) and Firebird as the database server (running as a service in classic mode) on the Windows platform (v10). It creates a SQL database with tables, views, triggers, generators.
So far, it has been running perfectly up to Firebird 3 (Latest version). Now Firebird 4.0 is out, I thought I try it out.
In order to narrow down on the problem, I created a new app that only creates the database, tables, triggers, generators,and only 2 views which are focused around the problem area.
The code for vew_AlbumDetails I use in my test app is:
...ANSWER
Answered 2021-Dec-23 at 06:20I have added 'DataTypeCompatibility = 3.0' to both databases.conf and firebird.conf.
The datatype for Album_NrSeconds is now NUMERIC.
My application runs flawlessly under Firebird 4.0 as a service after these 2 edits.
Thank you Mark Rotteveel for your suggestion. Its much appreciated.
QUESTION
I have a div containing an image that has been expanded to fit the entire page in width and most of the page in height.
...ANSWER
Answered 2021-Dec-18 at 15:33You could try object-position: 0 -200px;.
Here you are offsetting the Y position by negative 200 pixels.
For this solution you will need to adjust the offset for different resolutions by using media queries.
EDIT:
Another solution would be to swap out the image tags for background images and adjusting the background-position value, like so:
QUESTION
So I have this quite CPU-consuming app: https://codepen.io/team/amcharts/pen/47c41af971fe467b8b41f29be7ed1880
It's a Canvas on which things are drawn (a lot).
HTML:
...ANSWER
Answered 2021-Dec-17 at 08:12So we found out that this is indeed a Chromium issue, calling setTransform on a context (if nothing else is done) results to leak (which is not visible when profiling) and a crash. We reported it as a bug and hopefully it will be fixed. Meanwhile we are working on a workaround to avoid this situation.
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