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Javascript 2021-10-15 11:12:09
return <Text> using if condition react native
constructor() { super(); this.state ={ status:true } } render() { return( { this.state.status === true ? <TouchableHighlight onPress={()=>this.hideView()}> <View style={styles.optionView}> ... Add solution -
Javascript 2021-10-13 21:18:05
javascript vererbung Klasse extends super constructor
class Rectangle { constructor(height, width) { this.name = 'Rectangle'; this.height = height; this.width = width; } sayName() { console.log('Hi, I am a ', this.name + '.'); } get area() { return this.height * this.width; } ... Add solution -
Javascript 2021-10-13 20:12:06
load a component on button click react
import React from 'react'; import Grid from '@material-ui/core/Grid'; import Button from '@material-ui/core/Button'; import CssBaseline from '@material-ui/core/CssBaseline'; import Card from '@material-ui/core/Card'; import CardContent from '@material-ui/... Add solution -
Python 2021-10-13 01:36:05
how to create a joystick in pyqt4
from PyQt4.QtGui import * from PyQt4.QtCore import * import sys from enum import Enum class Direction(Enum): Left = 0 Right = 1 Up = 2 Down = 3 class Joystick(QWidget): def __init__(self, parent=None): super(Joystick, self)._... Add solution -
Python 2021-10-07 08:35:02
open new window in pyqt5
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QLabel, QVBoxLayout, QWidget import sys class AnotherWindow(QWidget): """ This "window" is a QWidget. If it has no parent, it will appear as a free... Add solution -
Python 2021-10-04 07:02:02
python chain of responsibility
from __future__ import annotations from abc import ABC, abstractmethod from typing import Any, Optional class Handler(ABC): """ The Handler interface declares a method for building the chain of handlers. It also declares a met... Add solution -
Python 2021-10-03 20:13:03
pyqt5 video player
from PyQt5.QtCore import QDir, Qt, QUrl from PyQt5.QtMultimedia import QMediaContent, QMediaPlayer from PyQt5.QtMultimediaWidgets import QVideoWidget from PyQt5.QtWidgets import (QApplication, QFileDialog, QHBoxLayout, QLabel, &nbs... Add solution -
Python 2021-10-03 08:40:02
super in django manager
# First, define the Manager subclass. class DahlBookManager(models.Manager): def get_queryset(self): return super().get_queryset().filter(author='Roald Dahl') # Then hook it into the Book model explicitly. class Book(models.Model): title ... Add solution