在我的网址中，我想检查自动播放是否存在，然后替换该值。
在我的iframe中，我有网址https://www.youtube.com/embed/C0DPdy98e4c?width=640
在那个网址中，我想检查自动播放是否存在。如果不需要在播放按钮点击中添加自动播放= 1的网址。
jQuery(document).ready(function($) {
$('.playButton').click(function() {
alert('play');
$('.flex-active-slide iframe').contents().find("iframe")[0].src += "&autoplay=1"; //need to check autoplay and append with src
$("iframe").src = src.replace(/\&autoplay\=\d/, "&autoplay=" + 1);
});
$(".close_icon").click(function() {
alert('close');
$("iframe").src = src.replace(/\&autoplay\=\d/, "&autoplay=" + 0);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="flex-active-slide">
<iframe src="https://www.youtube.com/embed/C0DPdy98e4c?width=640"></iframe>
</div>
<div class="playButton">Play</div>
<div class="close_icon">Close</div>
答案 0 :(得分：1)
jQuery(document).ready(function($) {
$('.playButton').click(function() {
alert('play');
if(/\&autoplay\=\d/.test($('.flex-active-slide iframe')[0].src)) {
$('.flex-active-slide iframe')[0].src = $('.flex-active-slide iframe')[0].src.replace(/\&autoplay\=\d/, "&autoplay=" + 1);
} else {
$('.flex-active-slide iframe')[0].src += "&autoplay=1"; //need to check autoplay and append with src
}
});
$(".close_icon").click(function() {
alert('close');
$("iframe")[0].src = $("iframe")[0].src.replace(/\&autoplay\=\d/, "&autoplay=" + 0);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="flex-active-slide">
<iframe src="https://www.youtube.com/embed/C0DPdy98e4c?width=640"></iframe>
</div>
<div class="playButton">Play</div>
<div class="close_icon">Close</div>
答案 1 :(得分：1)
您可以尝试javascript字符串函数indexOf来检查自动播放存在
jQuery(document).ready(function($) {
$('.playButton').click(function() {
var src=$('.flex-active-slide iframe').contents().find("iframe")[0].src;
if(src.indexOf("autoplay") == -1){
$('.flex-active-slide iframe').contents().find("iframe")[0].src += "&autoplay=1"; //need to check autoplay and append with src
}
$("iframe").src = src.replace(/\&autoplay\=\d/, "&autoplay=" + 1);
});
$(".close_icon").click(function() {
alert('close');
$("iframe").src = src.replace(/\&autoplay\=\d/, "&autoplay=" + 0);
});
});
答案 2 :(得分：1)
我写了一个可靠的功能供您使用。
用法：autoplayURL(url string, autoplayOn/Off bool);
返回格式化字符串以打开或关闭自动播放。
默认情况下，如果不解析第二个参数，则自动播放将打开。
jQuery(document).ready(function($) {
$('.playButton').click(function() {
$("#youtube-iframe").attr("src", autoplayURL($("#youtube-iframe").attr("src")));
});
$(".close_icon").click(function() {
$("#youtube-iframe").attr("src", autoplayURL($("#youtube-iframe").attr("src"), false));
});
});
function autoplayURL(youtubeURL, autoplay) {
// Set default value of autoplay
if (autoplay === undefined)
autoplay = true;
autoplay = autoplay ? 1 : 0;
// Remove trailing / from URL
if (youtubeURL.endsWith("/"))
youtubeURL = youtubeURL.substr(0, youtubeURL.length - 1);
// Add ? to end of URL if it doesn't exist
if (youtubeURL.indexOf('?') === -1) {
youtubeURL += "?autoplay=" + autoplay;
return youtubeURL;
}
var autoplayOpposite = autoplay === 0 ? 1 : 0;
if (youtubeURL.indexOf('autoplay=') === -1) {
// If URL does not contain 'autoplay=' then append to URL.
youtubeURL += "&autoplay=" + autoplay;
} else if (youtubeURL.indexOf('autoplay=' + autoplayOpposite) !== -1) {
// If URL contains 'autoplay=0' then replace it with 'autoplay=1'.
var firstPart = youtubeURL.substr(0, youtubeURL.indexOf('autoplay=' + autoplayOpposite));
var lastPart = youtubeURL.substr(youtubeURL.indexOf('autoplay=' + autoplayOpposite)+10);
youtubeURL = firstPart + "autoplay=" + autoplay + lastPart;
}
return youtubeURL;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="flex-active-slide">
<iframe src="https://www.youtube.com/embed/C0DPdy98e4c?width=640" id="youtube-iframe"></iframe>
</div>
<div class="playButton">Play</div>
<div class="close_icon">Close</div>
答案 3 :(得分：1)
您也可以使用索引，但如果您的网址在其他地方包含单词autoplay，那么它可能会爆炸示例：“https://www.youtube.com/embed/ 自动播放 C0DPdy98e4c？width = 640”。试试这个（假设你总是在url的末尾追加自动播放）：
jQuery(document).ready(function($) {
$('.playButton').click(function() {
alert('play');
var srcArr = $('.flex-active-slide iframe')[0].src.split('&')
var src = srcArr[srcArr.length-1];
$('.flex-active-slide iframe')[0].src = src+"&autoplay=1";
$("iframe")[0].src = src.replace(/\&autoplay\=\d/, "&autoplay=" + 1);
});
$(".close_icon").click(function() {
alert('close');
$("iframe")[0].src = src.replace(/\&autoplay\=\d/, "&autoplay=" + 0);
});
});
答案 4 :(得分：1)
这是我的解决方案。代码评论很多，所以应该是自我解释，但如果有任何不清楚的地方，请告诉我。
希望它对你有用。
$('.playButton').click(function() {
// get the current iframe url.
var originalSrc = $('.flex-active-slide iframe').attr('src');
//check if the autoplay=0 is part of the url.
var autoplayPos = originalSrc.indexOf("?&autoplay=0")
if (autoplayPos >= 0){
// if it is lets remove it.
originalSrc = originalSrc.substring(0,autoplayPos);
}
// set the new url to our original url (without autoplay=0) with autoplay=1 apended
var newSrc = originalSrc + "?&autoplay=1";
// set the iframe source to the new url.
$('.flex-active-slide iframe').attr('src', newSrc);
});
$(".close_icon").click(function() {
// get the current iframe url.
var originalSrc = $('.flex-active-slide iframe').attr('src')
// we dont bother checking if auotplay is already there since the site will always start with it not there (i assume).
// set new with, replace autoplay=1 with autoplay=0
var newSrc = originalSrc.replace("?&autoplay=1", "?&autoplay=0");
// set the iframe source to the new url.
$('.flex-active-slide iframe').attr('src', newSrc);
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<div class="flex-active-slide">
<iframe src="https://www.youtube.com/embed/C0DPdy98e4c?width=640"></iframe>
</div>
<div class="playButton">Play</div>
<div class="close_icon">Close</div>