input number maxlength
<form method="post">
<label for="myNumber">My Number:</label>
<input type="number" maxlength="9" required
oninput="javascript: if (this.value.length > this.maxLength) this.value = this.value.slice(0, this.maxLength);" >
<br><br>
<input type="submit" value="Submit">
</form>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'))
})
})Copyright © 2021 Codeinu
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