Check out example codes for "input ionic". It will help you in understanding the concepts better.

Code Example 1

<!-- Default Input -->
<ion-input></ion-input>

<!-- Input with value -->
<ion-input value="custom"></ion-input>

<!-- Input with placeholder -->
<ion-input placeholder="Enter Input"></ion-input>

<!-- Input with clear button when there is a value -->
<ion-input clearInput value="clear me"></ion-input>

<!-- Number type input -->
<ion-input type="number" value="333"></ion-input>

<!-- Disabled input -->
<ion-input value="Disabled" disabled></ion-input>

<!-- Readonly input -->
<ion-input value="Readonly" readonly></ion-input>

<!-- Inputs with labels -->
<ion-item>
  <ion-label>Default Label</ion-label>
  <ion-input></ion-input>
</ion-item>

<ion-item>
  <ion-label position="floating">Floating Label</ion-label>
  <ion-input></ion-input>
</ion-item>

<ion-item>
  <ion-label position="fixed">Fixed Label</ion-label>
  <ion-input></ion-input>
</ion-item>

<ion-item>
  <ion-label position="stacked">Stacked Label</ion-label>
  <ion-input></ion-input>
</ion-item>

Code Example 2

<!-- Inputs with labels -->
<ion-item>
  <ion-label>Default Label</ion-label>
  <ion-input></ion-input>
</ion-item>

<ion-item>
  <ion-label position="floating">Floating Label</ion-label>
  <ion-input></ion-input>
</ion-item>

<ion-item>
  <ion-label position="fixed">Fixed Label</ion-label>
  <ion-input></ion-input>
</ion-item>

<ion-item>
  <ion-label position="stacked">Stacked Label</ion-label>
  <ion-input></ion-input>
</ion-item>

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