Create an Elastic Input Angular Directive

Create an Elastic Input Angular Directive

Directives are powerful pattern when working with Angular. Having a strong understanding of directives can help you keep your developer experience better and can help to write more meaningful code.

*Elastic Input *is just a fancy name we gave for an input field that changes its width as per the content inside it.

The plan

We are going to take the following steps to achieve this.

  1. Create a directive, let’s call it elasticInput.
  2. Create a dummy DOM element(<div>) and attach to the document when the directive is initialized.
  3. Assign the value of the input field as the innerText to the <div> element.
  4. Take the width of the <div> element and explicitly set the input width to be equal to the width of the <div> with a delta value.
  5. Recalculate and update the width every time the input value change.

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