Optimal method for arranging Vue components

Question

Optimal method for arranging Vue components

When deciding where to position a child element, should it be done within its own CSS scope or from the parent?

In the scenario provided below, would it be more effective to use margin-left: auto; on the parent element or the child element (both options are functional)?

Vue.component('Child', {
  template: `
    <div class="childClassFromItself">
      Hi from the child
    </div>
  `
})

new Vue({
  el: '#demo',
})

#demo {
  display: flex;
}

.childClassFromParent {
  /*margin-left: auto;*/
}

.childClassFromItself {
  margin-left: auto;
}

<div id="demo">
  {{ message }}
  <Child class="childClassFromParent"/>
</div>

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>

Is one approach superior to the other, or does it depend too much on the specific component being used?

css vue.js

Answer 1

Answer №1

It's important to apply the margin in 99% of cases from the parent to the child element.

Child elements are often used in various contexts, and their margin may need to change depending on the layout. If you hardcode a specific margin within Child and then need to adjust it, you'll have to add extra code like "isSmallMargin" to override it in different instances.

Instead, setting the margin at the parent level gives you flexibility to modify it easily for each Child element throughout your application.

When it comes to styling guidelines:

If the style impacts the overall layout or spacing (margin) of Child's root element, it should be defined at the parent level.
If the style is specific to the child itself - such as color, font size, or inner layout - it should be defined within Child.

Avoid directly overriding CSS properties from outside a component:

<!-- This is not recommended! -->
<template>
  <div>
    <Child class="ugly-override">
  </div>
</template>
<style>
.ugly-override > .childClassFromItself {
  font-size: 18px;
  color: red;
}
</style>

Answer 2

It's important to apply the margin in 99% of cases from the parent to the child element.

Child elements are often used in various contexts, and their margin may need to change depending on the layout. If you hardcode a specific margin within Child and then need to adjust it, you'll have to add extra code like "isSmallMargin" to override it in different instances.

Instead, setting the margin at the parent level gives you flexibility to modify it easily for each Child element throughout your application.

When it comes to styling guidelines:

If the style impacts the overall layout or spacing (margin) of Child's root element, it should be defined at the parent level.
If the style is specific to the child itself - such as color, font size, or inner layout - it should be defined within Child.

Avoid directly overriding CSS properties from outside a component:

<!-- This is not recommended! -->
<template>
  <div>
    <Child class="ugly-override">
  </div>
</template>
<style>
.ugly-override > .childClassFromItself {
  font-size: 18px;
  color: red;
}
</style>

Optimal method for arranging Vue components

Answer №1

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