onfocus="(this.type='date')" code example

Example 1: add placeholder in input type date

<input type="text" placeholder="Date of birth" onfocus="(this.type='date')">

Example 2: add custom placeholder in input type date

<input type="text" placeholder="Birth Date" onfocus="(this.type='date')" onblur="if(this.value==''){this.type='text'}">