Trying to stop the animation after the last sentence it's written

JavaScript
1

Hello everyone! I need help with this JS code if possible.

What I try to do it’s to stop the loop and the deleting effect after the last sentence it’s written.

Update: I added the codes in Codepen to make it more accessible Here

This is my HTML:

<div class="insert-text">
   <a href="" class="typewrite"
            data-period="2000" 
            data-type='[ 
            "fsh2sdw", 
            "... My bad!", 
            "&#128075; Hello World! 🌍", 
            "This is the sentence I want the animation to stop without deleting it" ]'>
   <span class="wrap"></span>
   </a>
</div>

And this is the JS code:

var TxtType = function(el, toRotate, period) {
    this.toRotate = toRotate;
    this.el = el;
    this.loopNum = 0;
    this.period = parseInt(period, 10) || 2000;
    this.txt = '';
    this.tick();
    this.isDeleting = false;
};

TxtType.prototype.tick = function() {
    var i = this.loopNum % this.toRotate.length;
    var fullTxt = this.toRotate[i];

    if (this.isDeleting) {
    this.txt = fullTxt.substring(0, this.txt.length - 1);
    } else {
    this.txt = fullTxt.substring(0, this.txt.length + 1);
    }

    this.el.innerHTML = '<span class="wrap">'+this.txt+'</span>';

    var that = this;
    var delta = 200 - Math.random() * 100;

    if (this.isDeleting) { delta /= 2; }

    if (!this.isDeleting && this.txt === fullTxt) {
    delta = this.period;
    this.isDeleting = true;
    } else if (this.isDeleting && this.txt === '') {
    this.isDeleting = false;
    this.loopNum++;
    delta = 0;
    }

    setTimeout(function() {
    that.tick();
    }, delta);
};

window.onload = function() {
    var elements = document.getElementsByClassName('typewrite');
    for (var i=0; i<elements.length; i++) {
        var toRotate = elements[i].getAttribute('data-type');
        var period = elements[i].getAttribute('data-period');
        if (toRotate) {
          new TxtType(elements[i], JSON.parse(toRotate), period);
        }
    }
    // INJECT CSS
    var css = document.createElement("style");
    css.type = "text/css";
    css.innerHTML = ".typewrite > .wrap { border-right: 0.08em solid black}";
    document.body.appendChild(css);
};
1 Like
2

Not really sure what the best way of doing it would be but this seems to work.

if (this.isDeleting) {
  if(this.loopNum === 3) {
    return;
  }
  this.txt = fullTxt.substring(0, this.txt.length - 1);
} else {
  this.txt = fullTxt.substring(0, this.txt.length + 1);
}

Edit: You should probably clear the setTimeout as well (clearTimeout)

3

Thank you very much @lasjorg! This is what I wanted.