Sample Scenario:
While a user is entering information into a field, I would like to restrict the ability to delete or clear out the value, such as keeping "Friend" intact. Can this be accomplished using CSS or JavaScript?
Sample Scenario:
While a user is entering information into a field, I would like to restrict the ability to delete or clear out the value, such as keeping "Friend" intact. Can this be accomplished using CSS or JavaScript?
Yes, the possibility exists. Absolutely. The realm of possibilities is vast.
input.addEventListener("focusout", () => {
input.setAttribute("disabled", "");
});
However, it's important to consider how this may impact accessibility and usability.
In my opinion, using the disabled attribute is a better choice compared to readonly, as it carries semantic meaning and comes with the added advantage of default styling across most browsers.
If you want to monitor changes in an input field, you can utilize an event listener setup on the "onInput" event and assign the function below to it:
const inputElement = document.querySelector('input');
let previousValue = "";
function handleInputChange(e){
if(e.target.value.length > previousValue.length){
previousValue = e.target.value;
return;
}else{
e.target.value = previousValue;
}
}
inputElement.addEventListener('input', handleInputChange);
This particular function essentially keeps track of the last entered value until new letters are added - meaning, it won't update unless the new input is longer than the previous one. However, if the user attempts to delete characters (making the current input shorter than the prior value), this function will revert back to the previous input.
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