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Use RxJS mergeMap for Fine-grain Custom Behavior

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Render a React UI Based on Initial State

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Render a React UI with JSX

Add a Toggle All Complete Button with React Native TouchableOpacity

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Use Vue.js Component Computed Properties

Animate Colors with React Native Interpolate

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rxjs tutorial about Use RxJS mergeMap for Fine-grain Custom Behavior

Use RxJS mergeMap for Fine-grain Custom Behavior

5:39 rxjs PRO

RxJS operators mergeMap and switchMap are useful for handling asynchronous responses from the server, but they can do much more.

In this lesson, we will see how to use mergeMap to achieve the same functionality as map() or filter() or other custom behaviors.

react tutorial about Render a React UI Based on Initial State

Render a React UI Based on Initial State

5:15 react PRO

We’ll define a simple state object in the constructor of the App Component class. Once the state has been defined, we’ll replace the static elements in our rendered output with values from the component’s state. We’ll move from static items to an array, seeing how we can use functions like map to render our UI.

react tutorial about Render a React UI with JSX

Render a React UI with JSX

2:48 react

We’ll dive right into JSX by rendering a static version of what our application will look like. We’ll cover the basic syntax of JSX and point out where it differs from html.

react tutorial about Add a Toggle All Complete Button with React Native TouchableOpacity

Add a Toggle All Complete Button with React Native TouchableOpacity

3:43 react PRO

In this lesson we'll add a Toggle All Complete Button next to the Text Input. We'll show off how components without flex layout affect siblings with flex layout properties.

vue tutorial about Use Vue.js Component Computed Properties

Use Vue.js Component Computed Properties

1:12 vue

You can add computed properties to a component to calculate a property on the fly. The benefit of this over invoking a method is that computed properties are cached based on their dependencies.

react tutorial about Animate Colors with React Native Interpolate

Animate Colors with React Native Interpolate

2:11 react PRO

We'll use the interpolate function from an Animated.Value to transition the background color of an Animated.View. We'll simultaneously translate the position with the same Animated.Value.

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