Input Attributes

• autofocus
  • Specifies that an input field should automatically get focus when the page loads.
• autocomplete
  • Specifies whether a form or an input field should have autocomplete on or off.
  • Specifies whether the browser should display options to fill in the field, based on earlier typed values.
• placeholder:
  • Specifies a short hint that describes the expected value of an input field
  • Displayed in the input field before the user enters a value.
• value:
  • Specifies an initial value for an input field
• readonly:
  • Specifies that an input field is read-only.
  • The value of a read-only input field will be sent when submitting the form!
• disabled
  • Specifies that an input field should be disabled.
  • The value of a disabled input field will not be sent when submitting the form!
• size
  • Specifies the visible width, in characters, of an input field.
  • Default value for size is 20.
• multiple:
  • Specifies that the user is allowed to select more than 1 file when used with file control.
• checked:
  • Specifies that an <input> element should be pre-selected when the page loads (for checkbox or radio)
• required:
  • Specifies that an input field must be filled out before submitting the form.
• minlength:
  • Specifies the minimum number of characters required in an <input> element
• maxlength:
  • Specifies the maximum number of characters allowed in an input field.
• pattern
  • Specifies a regular expression that the input field's value is checked against, when the form is submitted
  • Works with the following input types: text, date, search, url, tel, email, and password.
• step
  • Specifies the number intervals for an input field.
  • Works with the following input types: number, range, date, datetime-local, month, time and week.
• min and max
  • min and max attributes specify the minimum and maximum values for an input field.
  • work with the following input types: number, range, date, datetime-local, month, time and week.
  • Use the max and min attributes together to create a range of legal values.
• pattern:
  • specifies a regular expression that the input field's value is checked against, when the form is submitted.
  • works with the following input types: text, date, search, url, tel, email, and password.
• accept
  • Specifies what file types the user can pick from the file input.
  • To specify more than one value, separate the values with a comma
  • eg <input accept="audio/*,video/*,image/*" />

Input Form Attributes

Overrides the attribute of the <form> element. Works with the following input types: submit and image.

• formaction
• formenctype
• formmethod
• formnovalidate
• formtarget