Take a closer look at TTabControl / TTabItem in the unit FMX.TabControl. This is your perfect example because it basically needs to solve the same problem. The following function is what you need to override: procedure DoAddObject(const AObject: TFmxObject); override; This is called when a control is added to your control. Override this function so … Read more
You can change the null value to undefined to use the default value. <Component bedrooms={bedrooms || undefined} />
You can export multiple functions from a file, no React needed per se: Helpers.js: export function plus(a, b) { return a + b; } export function minus(a, b) { return a – b; } export function multiply(a, b) { return a * b; } export function divide(a, b) { return a / b; } You … Read more
React’s one-way data-binding model means that child components cannot send back values to parent components unless explicitly allowed to do so. The React way of doing this is to pass down a callback to the child component (see Facebook’s “Forms” guide). class Parent extends Component { constructor() { this.state = { value: ” }; } … Read more
Vue sets all the properties in the data option to setters/getters to make them reactive. See Reactivity in depth Since you want myArray to be static you can create it as a custom option which can be accessed using vm.$options export default{ data() { return{ someReactiveData: [1, 2, 3] } }, //custom option name myArray … Read more
This is not possible the-angular-way anymore since the replace: true flag has been deprecated Why is replace deprecated in AngularJS? the replace: true flag had come up with more problems than solutions which is why it was removed. therefore you can not build directives in such a way anymore and provide valid table-tr-td markup. However, … Read more
A simplified solution using state could look like this: class Typing extends React.Component { constructor(props) { super(props); this.state = { disabled: false } } handleGameClik() { this.setState( {disabled: !this.state.disabled} ) } render() { return( <div> <input className = “typing-container” placeholder= ” type here ” disabled = {(this.state.disabled)? “disabled” : “”}/> <button onClick = {this.handleGameClik.bind(this)}> Start … Read more
They were most likely looking for examples of web frameworks – for example, JSF is a component-based framework, and Struts is a request-based framework. Request-based frameworks generally make it clear through their APIs that they’re working with parsing an HTML request / generating an HTML response, while Component-based frameworks attempt to abstract this away and … Read more
Component approach I would suggest you to align with Angular 2 component approach and use inputs/outputs approach. If you do so, you will be able to easily migrate to Angular 2, because components will be conceptually identical (with difference only in syntax). So here is the way you do it. So we basically want header … Read more
It’s the React shortcut for Fragment component. You can write like this : import React, { Component } from ‘react’ class Component extends Component { render() { return <> <ComponentA/> <ComponentB/> </> } } Or without the shortcut and import Fragment component import React, { Component, Fragment } from ‘react’ class Component extends Component { … Read more