Ways to alter the appearance of individual characters in the text input

Question

Ways to alter the appearance of individual characters in the text input

My latest project involves dynamically changing the CSS styles of each individual character in a given text input. For example, if the user types "Stack" into the input field, I want the 'S' to appear in red, 't' in blue, 'a' in green, and so on.

var myModel = {
name: "Mayur",
};

var myViewModel = new Vue({
el: '#my_view',
data: myModel
});

span{
color:green;
font-weight:600;
font-size:20px;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/1.0.26/vue.min.js"></script>

<div id="my_view">
  <label for="name">Enter name:</label>
  <input type="text" v-model="name" id="name" name="name" />
  <p>Welcome, <span>{{ name | uppercase }}</span></p>
</div>

javascript html css vue.js

Answer 1

Answer №1

Although I have limited experience with Vue and its internal events and processes, I have created a small prototype using pure JavaScript:

document.querySelector('button').onclick = function (){
    let span = document.querySelector('span.letters'),
        text = span.textContent;
    span.innerHTML = '';
    Array.from(text).map(function(l){
        let color = document.createElement('span');
        color.innerHTML = l;
        color.style.color = 'rgb(' +
            randInterval(0, 255) + ',' +
            randInterval(0, 255) + ',' +
            randInterval(0, 255) + ')';
        span.appendChild(color);
    });
}

function randInterval(min,max)
{
    return Math.floor(Math.random()*(max-min+1)+min);
}

<div><span class="letters">STACK</span></div>

<button>Random colors</button>

I intentionally encapsulated the function that randomizes the rgb() values into a separate function for easy manipulation (ensuring truly random colors). To create darker colors, you can decrease the max values. For lighter colors, increase the min values.

Answer 2

Although I have limited experience with Vue and its internal events and processes, I have created a small prototype using pure JavaScript:

document.querySelector('button').onclick = function (){
    let span = document.querySelector('span.letters'),
        text = span.textContent;
    span.innerHTML = '';
    Array.from(text).map(function(l){
        let color = document.createElement('span');
        color.innerHTML = l;
        color.style.color = 'rgb(' +
            randInterval(0, 255) + ',' +
            randInterval(0, 255) + ',' +
            randInterval(0, 255) + ')';
        span.appendChild(color);
    });
}

function randInterval(min,max)
{
    return Math.floor(Math.random()*(max-min+1)+min);
}

<div><span class="letters">STACK</span></div>

<button>Random colors</button>

I intentionally encapsulated the function that randomizes the rgb() values into a separate function for easy manipulation (ensuring truly random colors). To create darker colors, you can decrease the max values. For lighter colors, increase the min values.

Answer 3

Answer №2

Website Development:

<div>Enter text here, then click below the white space to see magic happen!</div>
<input type="hidden" id="hidden">

Javascript Magic:

$("div").prop("contentEditable", true).blur(function(){
    var chars = $(this).text().split("");
    $("#hidden").val($(this).text());
    this.innerHTML = "";
    $.each(chars, function(){
        $("<span>").text(this).css({
            color: "#"+(Math.random()*16777215|0).toString(16)
        }).appendTo("div");
    });
});

Cool Styling with CSS:

div{
    border: 1px solid black;
    width: 400px;
    height: 20px;
    padding: 2px 3px;
    overflow: hidden;
}

Check out the implementation at http://jsfiddle.net/DerekL/Y8ySy/ for a live demo!

The code provided will randomly color characters, but you can easily customize it or keep them running randomly as is.

Answer 4

Website Development:

<div>Enter text here, then click below the white space to see magic happen!</div>
<input type="hidden" id="hidden">

Javascript Magic:

$("div").prop("contentEditable", true).blur(function(){
    var chars = $(this).text().split("");
    $("#hidden").val($(this).text());
    this.innerHTML = "";
    $.each(chars, function(){
        $("<span>").text(this).css({
            color: "#"+(Math.random()*16777215|0).toString(16)
        }).appendTo("div");
    });
});

Cool Styling with CSS:

div{
    border: 1px solid black;
    width: 400px;
    height: 20px;
    padding: 2px 3px;
    overflow: hidden;
}

Check out the implementation at http://jsfiddle.net/DerekL/Y8ySy/ for a live demo!

The code provided will randomly color characters, but you can easily customize it or keep them running randomly as is.

Ways to alter the appearance of individual characters in the text input

Answer №1

Answer №2

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