Uncaught TypeError: Cannot read property 'on' of undefined at
navSwiper.$el.on('touchstart', function(e) {
e.preventDefault() //去掉按压阴影
})
源码是这样的 该怎么解决啊
全部Js源码
barwidth = 36 //导航粉色条的长度px
tSpeed = 300 //切换速度300ms
var navSwiper = new Swiper('.ItemNav', {
slidesPerView: 6,
freeMode: true,
on: {
init: function() {
navSlideWidth = this.slides.eq(0).css('width'); //导航字数需要统一,每个导航宽度一致
bar = this.$el.find('.bar')
bar.css('width', navSlideWidth)
bar.transition(tSpeed)
navSum = this.slides[this.slides.length - 1].offsetLeft //最后一个slide的位置
clientWidth = parseInt(this.$wrapperEl.css('width')) //Nav的可视宽度
navWidth = 0
for (i = 0; i < this.slides.length; i++) {
navWidth += parseInt(this.slides.eq(i).css('width'))
}
topBar = this.$el.parents('body').find('.ItemTop') //页头
},
},
});
var pageSwiper = new Swiper('.ItemNavnav', {
watchSlidesProgress: true,
resistanceRatio: 0,
on: {
touchMove: function() {
progress = this.progress
bar.transition(0)
bar.transform('translateX(' + navSum * progress + 'px)')
//粉色255,72,145灰色51,51,51
for (i = 0; i < this.slides.length; i++) {
slideProgress = this.slides[i].progress
if (Math.abs(slideProgress) < 1) {
r = Math.floor((255 - 51) * (1 - Math.pow(Math.abs(slideProgress), 2)) + 51)
g = Math.floor((72 - 51) * (1 - Math.pow(Math.abs(slideProgress), 2)) + 51)
b = Math.floor((145 - 51) * (1 - Math.pow(Math.abs(slideProgress), 2)) + 51)
navSwiper.slides.eq(i).find('span').css('color', 'rgba(' + r + ',' + g + ',' + b + ',1)')
}
}
},
transitionStart: function() {
activeIndex = this.activeIndex
activeSlidePosition = navSwiper.slides[activeIndex].offsetLeft
//释放时导航粉色条移动过渡
bar.transition(tSpeed)
bar.transform('translateX(' + activeSlidePosition + 'px)')
//释放时文字变色过渡
navSwiper.slides.eq(activeIndex).find('span').transition(tSpeed)
navSwiper.slides.eq(activeIndex).find('span').css('color', 'rgba(255,72,145,1)')
if (activeIndex > 0) {
navSwiper.slides.eq(activeIndex - 1).find('span').transition(tSpeed)
navSwiper.slides.eq(activeIndex - 1).find('span').css('color', 'rgba(51,51,51,1)')
}
if (activeIndex < this.slides.length) {
navSwiper.slides.eq(activeIndex + 1).find('span').transition(tSpeed)
navSwiper.slides.eq(activeIndex + 1).find('span').css('color', 'rgba(51,51,51,1)')
}
//导航居中
navActiveSlideLeft = navSwiper.slides[activeIndex].offsetLeft //activeSlide距左边的距离
navSwiper.setTransition(tSpeed)
if (navActiveSlideLeft < (clientWidth - parseInt(navSlideWidth)) / 2) {
navSwiper.setTranslate(0)
} else if (navActiveSlideLeft > navWidth - (parseInt(navSlideWidth) + clientWidth) / 2) {
navSwiper.setTranslate(clientWidth - navWidth)
} else {
navSwiper.setTranslate((clientWidth - parseInt(navSlideWidth)) / 2 - navActiveSlideLeft)
}
},
}
});
navSwiper.$el.on('touchstart', function(e) {
e.preventDefault() //去掉按压阴影
})
navSwiper.on('tap', function(e) {
clickIndex = this.clickedIndex
clickSlide = this.slides.eq(clickIndex)
pageSwiper.slideTo(clickIndex, 0);
this.slides.find('span').css('color', 'rgba(51,51,51,1)');
clickSlide.find('span').css('color', 'rgba(255,72,145,1)');
})
//热卖
var bannerSwiper = new Swiper('.banner', {
loop: true,
pagination: {
el: '.swiper-pagination',
type: 'fraction',
renderFraction: function(currentClass, totalClass) {
return '<span class="' + currentClass + '"></span>' + '/' + '<span class="' + totalClass + '"></span>';
},
},
});
下面是html
<article>
<div class="tgj_IndexItemBox">
<div class="tgj_IndexItem">
<div class="tgj_ItemNav">
<div class="tgj_ItemNavTitle"><i></i></div>
<div class="tgj_ItemNavScrool">
<div class="ItemTop">
<div class="swiper-container overflow-hidden ItemNav">
<div class="swiper-wrapper">
<div class="swiper-slide">
<span style="color:rgba(255,72,145,1);">热卖</span></div>
<div class="swiper-slide">
<span>水果</span></div>
<div class="swiper-slide">
<span>乳品</span></div>
<div class="swiper-slide">
<span>零食</span></div>
<div class="swiper-slide">
<span>肉蛋</span></div>
<div class="swiper-slide">
<span>蔬菜</span></div>
<div class="swiper-slide">
<span>酒饮</span></div>
<div class="swiper-slide">
<span>速食</span></div>
<div class="swiper-slide">
<span>熟食</span></div>
<div class="swiper-slide">
<span>水产</span></div>
<div class="swiper-slide">
<span>粮油</span></div>
<div class="swiper-slide">
<span>轻食</span></div>
<div class="swiper-slide">
<span>火锅</span></div>
<div class="swiper-slide">
<span>日百</span></div>
<div class="bar">
<div class="color"></div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="">
<div class="overflow-hidden">
<div class="swiper-container ItemNavnav">
<div class="swiper-wrapper">
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">
slide1
</div>
</div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">
slide2
</div>
</div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide3</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide4</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide5</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide6</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide7</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide8</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide9</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide10</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide11</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide12</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide13</div></div>
</div>
</div>
<div class="swiper-slide slidepage">
<div class="swiper-container scroll">
<div class="swiper-wrapper">
<div class="swiper-slide slidescroll">slide14</div></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</article>
我想让html能够在一张页面中可以重复使用，现在用一个可以，但是用两个就报错。
