html input max words code example
Example 1: html input max words
<p><input type="text" data-max-words="2" data-announce="true"></p>
<p><input type="text" data-max-words="3"></p>
<p><input type="text" data-max-words="4"></p>
<p><textarea data-max-words="100" rows="5" style="width:100%" data-announce="true"></textarea></p>
Example 2: html input max words
// Get all inputs that have a word limit
document.querySelectorAll('input[data-max-words]').forEach(input => {
// Remember the word limit for the current input
let maxWords = parseInt(input.getAttribute('data-max-words') || 0)
// Add an eventlistener to test for key inputs
input.addEventListener('keydown', e => {
let target = e.currentTarget
// Split the text in the input and get the current number of words
let words = target.value.split(/\s+/).length
// If the word count is > than the max amount and a space is pressed
// Don't allow for the space to be inserted
if (!target.getAttribute('data-announce'))
// Note: this is a shorthand if statement
// If the first two tests fail allow the key to be inserted
// Otherwise we prevent the default from happening
words >= maxWords && e.keyCode == 32 && e.preventDefault()
else
words >= maxWords && e.keyCode == 32 && (e.preventDefault() || alert('Word Limit Reached'))
})
})