Vue 2 vs Ember Polaris: A Comprehensive Comparison

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In the world of frontend development, Vue 2 and Ember Polaris represent two different approaches to building web applications. While Vue 2 is a mature framework with a rich ecosystem, Ember Polaris brings modern features to the Ember ecosystem with its Glimmer components. Let’s explore their differences and use cases.

Table of Contents

  1. Core Concepts
  2. Reactivity and State Management
  3. Templating and Components
  4. DOM Manipulation
  5. Event Handling
  6. Component Composition
  7. Form Handling
  8. Lifecycle Management
  9. Performance and Bundle Size
  10. Learning Curve
  11. Conclusion

Core Concepts

Vue 2 and Ember Polaris take fundamentally different approaches to building web applications:

  • Vue 2 uses a progressive framework approach with a virtual DOM and component-based architecture
  • Ember Polaris uses a modern, class-based component model with Glimmer templates and strict-mode JavaScript

Reactivity and State Management

State Declaration

Both frameworks offer different ways to declare and manage state:

Vue 2’s Approach

<script>
export default {
  data() {
    return {
      name: "John",
    };
  },
};
</script>

<template>
  <h1>Hello {{ name }}</h1>
</template>

Vue 2 uses a component-based approach with a data function.

Ember Polaris’s Approach

import Component from "@glimmer/component";

export default class NameComponent extends Component {
  name = "John";

  <template>
    <h1>Hello {{this.name}}</h1>
  </template>
}

Ember Polaris uses class-based components with decorators.

State Updates

Vue 2

<script>
export default {
  data() {
    return {
      name: "John",
    };
  },
  created() {
    this.name = "Jane";
  },
};
</script>

<template>
  <h1>Hello {{ name }}</h1>
</template>

Ember Polaris

import Component from "@glimmer/component";
import { tracked } from "@glimmer/tracking";

export default class CounterComponent extends Component {
  @tracked name = "John";

  constructor(owner, args) {
    super(owner, args);
    this.name = "Jane";
  }

  <template>
    <h1>Hello {{this.name}}</h1>
  </template>
}

Computed Values

Vue 2

<script>
export default {
  data() {
    return {
      count: 10,
    };
  },
  computed: {
    doubleCount() {
      return this.count * 2;
    },
  },
};
</script>

<template>
  <div>{{ doubleCount }}</div>
</template>

Ember Polaris

import Component, { tracked } from "@glimmer/component";

export default class DoubleCount extends Component {
  @tracked count = 10;

  get doubleCount() {
    return this.count * 2;
  }

  <template>
    <div>{{this.doubleCount}}</div>
  </template>
}

DOM Manipulation

List Rendering

Vue 2

<script>
export default {
  data() {
    return {
      colors: ["red", "green", "blue"],
    };
  },
};
</script>

<template>
  <ul>
    <li v-for="color in colors" :key="color">
      {{ color }}
    </li>
  </ul>
</template>

Ember Polaris

const colors = ["red", "green", "blue"];

<template>
  <ul>
    {{#each colors as |color|}}
      <li>{{color}}</li>
    {{/each}}
  </ul>
</template>

Conditional Rendering

Vue 2

<script>
export default {
  data() {
    return {
      TRAFFIC_LIGHTS: ["red", "orange", "green"],
      lightIndex: 0,
    };
  },
  computed: {
    light() {
      return this.TRAFFIC_LIGHTS[this.lightIndex];
    },
  },
  methods: {
    nextLight() {
      this.lightIndex = (this.lightIndex + 1) % this.TRAFFIC_LIGHTS.length;
    },
  },
};
</script>

<template>
  <div>
    <button @click="nextLight">Next light</button>
    <p>Light is: {{ light }}</p>
    <p>
      You must
      <span v-if="light === 'red'">STOP</span>
      <span v-else-if="light === 'orange'">SLOW DOWN</span>
      <span v-else-if="light === 'green'">GO</span>
    </p>
  </div>
</template>

Ember Polaris

import Component from "@glimmer/component";
import { tracked } from "@glimmer/tracking";
import { on } from "@ember/modifier";
import { eq } from 'ember-truth-helpers';

const TRAFFIC_LIGHTS = ["red", "orange", "green"];

export default class TrafficLight extends Component {
  @tracked lightIndex = 0;

  get light() {
    return TRAFFIC_LIGHTS[this.lightIndex];
  }

  nextLight = () => {
    this.lightIndex = (this.lightIndex + 1) % TRAFFIC_LIGHTS.length;
  };

  <template>
    <button {{on "click" this.nextLight}}>Next light</button>
    <p>Light is: {{this.light}}</p>
    <p>
      You must
      {{#if (eq this.light "red")}}
        STOP
      {{else if (eq this.light "orange")}}
        SLOW DOWN
      {{else if (eq this.light "green")}}
        GO
      {{/if}}
    </p>
  </template>
}

Event Handling

Click Events

Vue 2

<script>
export default {
  data() {
    return {
      count: 0,
    };
  },
  methods: {
    incrementCount() {
      this.count++;
    },
  },
};
</script>

<template>
  <div>
    <p>Counter: {{ count }}</p>
    <button @click="incrementCount">+1</button>
  </div>
</template>

Ember Polaris

import Component from "@glimmer/component";
import { tracked } from "@glimmer/tracking";
import { on } from "@ember/modifier";

export default class Counter extends Component {
  @tracked count = 0;

  incrementCount = () => this.count++;

  <template>
    <p>Counter: {{this.count}}</p>
    <button {{on "click" this.incrementCount}}>+1</button>
  </template>
}

Form Handling

Text Input

Vue 2

<script>
export default {
  data() {
    return {
      text: "Hello World",
    };
  },
};
</script>

<template>
  <div>
    <p>{{ text }}</p>
    <input v-model="text" />
  </div>
</template>

Ember Polaris

import Component from "@glimmer/component";
import { tracked } from "@glimmer/tracking";
import { on } from '@ember/modifier';

export default class InputHello extends Component {
  @tracked text = "Hello World";

  handleInput = (event) => (this.text = event.target.value);

  <template>
    <p>{{this.text}}</p>
    <input value={{this.text}} {{on "input" this.handleInput}} />
  </template>
}

Performance and Bundle Size

Vue 2

  • Virtual DOM-based updates
  • Progressive framework
  • Rich ecosystem
  • Moderate bundle size

Ember Polaris

  • Modern build pipeline
  • Glimmer VM
  • Tree shaking support
  • Optimized rendering engine

Learning Curve

Vue 2

  • Moderate learning curve
  • Component-based architecture
  • Rich ecosystem to learn
  • Build setup required

Ember Polaris

  • Steeper learning curve
  • Class-based components
  • Strong conventions
  • Rich ecosystem to learn

Conclusion

Choose Vue 2 if you:

  • Need a progressive framework
  • Want a gentle learning curve
  • Need a rich ecosystem
  • Are building medium to large applications
  • Value flexibility in architecture

Choose Ember Polaris if you:

  • Need a full-featured enterprise framework
  • Value strong conventions
  • Want modern class-based components
  • Are building large-scale applications
  • Need robust tooling support

Both frameworks excel in different scenarios:

  • Vue 2 is perfect for teams that want a flexible, progressive framework
  • Ember Polaris shines in enterprise applications where strong conventions and modern features are important

The choice between Vue 2 and Ember Polaris often depends on your project’s requirements:

  • Use Vue 2 for building progressive applications with a gentle learning curve
  • Use Ember Polaris for building large-scale applications that benefit from strong conventions and modern features





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