Vue excs - 4

by HikariNoSekai

HTML

<script src="https://npmcdn.com/vue/dist/vue.js"></script>

<div id="exercise">
  <!-- 1) Start the Effect with the Button. The Effect should alternate the "highlight" or "shrink" class on each new setInterval tick (attach respective class to the div with id "effect" below) -->
  <div>
    <button @click="startEffect">Start Effect</button>
    <div id="effect" :class="effectClasses"></div>
  </div>
  <!-- 2) Create a couple of CSS classes and attach them via the array syntax -->
  <div :class="['blue', float, 'text-color']">I got no class :(</div>
  <!-- 3) Let the user enter a class (create some example classes) and attach it -->
  <div>
    <input type="text" v-model="userClass">
    <div :class="[{visible: true}, userClass]"></div>
  </div>
  <!-- 4) Let the user enter a class and enter true/ false for another class (create some example classes) and attach the classes -->
  <div>
    <input type="text" v-model="userClass">
    <input type="text" v-model="isVisible">
    <div :class="[{visible: isVisible}, userClass]"></div>
  </div>
  <!-- 5) Repeat 3) but now with values for styles (instead of class names). Attach the respective styles.  -->
  <div>
    <input type="text" v-model="myStyle.backgroundColor">
    <div :style="myStyle"></div>
  </div>
  <!-- 6) Create a simple progress bar with setInterval and style bindings. Start it by hitting the below button. -->
  <div>
    <button @click="startProgress">Start Progress</button>
    <div :class="['progress-bar']" :style="progressBar"></div>
  </div>
</div>

CSS

#effect {
  width: 100px;
  height: 100px;
  border: 1px solid black;
}

.highlight {
  background-color: red;
  width: 200px !important;
}

.shrink {
  background-color: gray;
  width: 50px !important;
}

.blue {
  background-color: blue;
}

.float {
  float: right;
}

.text-color{
  color: yellow;
}

.visible {
  height: 50px;
  width: 100px;
}

.progress-bar{
  width: 200px;
  height: 20px;
  border: 1px solid black;
}

Vue

new Vue({
  el: '#exercise',
  data: {
		effectClasses: {
    	highlight: false,
      shrink: true
    },
    float: 'float',
    userClass: '',
    isVisible: true,
    myStyle: {
    	width: '100px',
      height: '100px',
      backgroundColor: 'green'
    },
    progressBar: {
    	width: '0px',
      backgroundColor: 'red'
    }
  },
  methods: {
    startEffect() {
    	setInterval( () => {
      	this.effectClasses.highlight = !this.effectClasses.highlight;
        this.effectClasses.shrink = !this.effectClasses.shrink;
      },1000);
    },
    startProgress() {
    	let width = 0;
    	setInterval(()=>{
      	width = width + 10;
      	this.progressBar.width = width + 'px';
      }, 500);
    }
  }
});