问题

HTML:

<a href="#" class="show_hide" data-content="toggle-text">Read More</a>

jQuery:

// Slide Up Slide Down
$('.show_hide').toggle(function(){
$(this).text().replace("Read More", "Read Less");
$('.' + $(this).attr('data-content')).slideDown();

},function(){
$(this).text().replace("Read Less", "Read More");
$('.' + $(this).attr('data-content')).slideUp();
});

I am trying to make one of those "Read More / Read Less" buttons to hide and show text.
How do I replace "Read More" with "Read Less" on click?

Your input is much appreciated!

回答1:

You could also use :visible to check if content is visible and change text accordingly.

$(document).ready(function () {
    $(".content").hide();
    $(".show_hide").on("click", function () {
        var txt = $(".content").is(':visible') ? 'Read More' : 'Read Less';
        $(".show_hide").text(txt);
        $(this).next('.content').slideToggle(200);
    });
});

JSFiddle Demo

回答2:

We can do using CSS and a class switching method with jQuery

Source

Demo here

JavaScript:

function AddReadMore() {
    //This limit you can set after how much characters you want to show Read More.
    var carLmt = 280;
    // Text to show when text is collapsed
    var readMoreTxt = " ... Read More";
    // Text to show when text is expanded
    var readLessTxt = " Read Less";


    //Traverse all selectors with this class and manupulate HTML part to show Read More
    $(".addReadMore").each(function() {
        if ($(this).find(".firstSec").length)
            return;

        var allstr = $(this).text();
        if (allstr.length > carLmt) {
            var firstSet = allstr.substring(0, carLmt);
            var secdHalf = allstr.substring(carLmt, allstr.length);
            var strtoadd = firstSet + "<span class='SecSec'>" + secdHalf + "</span><span class='readMore'  title='Click to Show More'>" + readMoreTxt + "</span><span class='readLess' title='Click to Show Less'>" + readLessTxt + "</span>";
            $(this).html(strtoadd);
        }

    });
    //Read More and Read Less Click Event binding
    $(document).on("click", ".readMore,.readLess", function() {
        $(this).closest(".addReadMore").toggleClass("showlesscontent showmorecontent");
    });
}
$(function() {
    //Calling function after Page Load
    AddReadMore();
});

CSS:

<style>
.addReadMore.showlesscontent .SecSec,
.addReadMore.showlesscontent .readLess {
    display: none;
}

.addReadMore.showmorecontent .readMore {
    display: none;
}

.addReadMore .readMore,
.addReadMore .readLess {
    font-weight: bold;
    margin-left: 2px;
    color: blue;
    cursor: pointer;
}

.addReadMoreWrapTxt.showmorecontent .SecSec,
.addReadMoreWrapTxt.showmorecontent .readLess {
    display: block;
}
</style>

HTML:

<h3>Show More Content</h3>
<p class="addReadMore showlesscontent">Es ist ein lang erwiesener Fakt, dass ein Leser vom Text abgelenkt wird, wenn er sich ein Layout ansieht. Der Punkt, Lorem Ipsum zu nutzen, ist, dass es mehr oder weniger die normale Anordnung von Buchstaben darstellt und somit nach lesbarer Sprache aussieht. Viele Desktop Publisher und Webeditoren nutzen mittlerweile Lorem Ipsum als den Standardtext, auch die Suche im Internet nach "lorem ipsum" macht viele Webseiten sichtbar, wo diese noch immer vorkommen. Mittlerweile gibt es mehrere Versionen des Lorem Ipsum, einige zufällig, andere bewusst (beeinflusst von Witz und des eigenen Geschmacks)Es ist ein lang erwiesener Fakt</p>

回答3:

I wanted it with an animation. So I ended up coding it myself 😊

JavaScript

var defaultHeight = 20; // height when "closed"
var text = $(".text");
var textHeight = text[0].scrollHeight; // the real height of the element
var button = $(".button");

text.css({"max-height": defaultHeight, "overflow": "hidden"});

button.on("click", function(){
  var newHeight = 0;
  if (text.hasClass("active")) {
    newHeight = defaultHeight;
    text.removeClass("active");
  } else {
    newHeight = textHeight;
    text.addClass("active");
  }
  text.animate({
    "max-height": newHeight
  }, 500);
});

CSS

.button {
  background: green;
  border-radius: 5px;
  padding: 5px;
  color: white;
  text-align: center;
}

HTML

<p class="text">
  Are you ready to hear the worlds best and most innovative idea that no one has ever heard of? It is the most intuitive creation of human thoughts and about to become reality.
</p>
<p class="button">read more</p>

Demo - CodePen

Happy Coding ✌🏻😊

回答4:

$(".click1").click(function() {
    var kkk = $(this).text();
    if (kkk == "Read More" ) {
        $(".click1").text("Read Less");
    }else {
        $(".click1").text("Read More");
    }
    $(".load-more1").slideToggle(500);
});

来源：https://stackoverflow.com/questions/25341429/jquery-read-more-read-less-how-to-replace-text

标签

javascript