Javascript Jquery逐字淡入效果
我一直在寻找这个确切的脚本有一段时间了,我无法让它工作。我希望使用从左到右逐字的淡入效果 比如说Javascript Jquery逐字淡入效果,javascript,jquery,html,css,Javascript,Jquery,Html,Css,我一直在寻找这个确切的脚本有一段时间了,我无法让它工作。我希望使用从左到右逐字的淡入效果 比如说 <div class="box5"> <h1>Lorem ipsum dolor sit amet, ne mel vero impetus voluptatibus </h1> </div> 然后JS function replaceAllInstances(source, search,
<div class="box5">
<h1>Lorem ipsum dolor sit amet, ne mel vero impetus voluptatibus
</h1>
</div>
然后JS
function replaceAllInstances(source, search, replacement) {
var regex = new RegExp(search, "g");
var result = source.replace(regex, replacement);
return result;
}
$.fn.isOnScreen = function (x, y) {
if (x == null || typeof x == 'undefined')
x = 1;
if (y == null || typeof y == 'undefined')
y = 1;
var win = $(window);
var viewport = {
top: win.scrollTop(),
left: win.scrollLeft()
};
viewport.right = viewport.left + win.width();
viewport.bottom = viewport.top + win.height();
var height = this.outerHeight();
var width = this.outerWidth();
if (!width || !height) {
return false;
}
var bounds = this.offset();
bounds.right = bounds.left + width;
bounds.bottom = bounds.top + height;
var visible = (!(viewport.right < bounds.left || viewport.left > bounds.right || viewport.bottom < bounds.top || viewport.top > bounds.bottom));
if (!visible) {
return false;
}
var deltas = {
top: Math.min(1, (bounds.bottom - viewport.top) / height),
bottom: Math.min(1, (viewport.bottom - bounds.top) / height),
left: Math.min(1, (bounds.right - viewport.left) / width),
right: Math.min(1, (viewport.right - bounds.left) / width)
};
return (deltas.left * deltas.right) >= x && (deltas.top * deltas.bottom) >= y;
};
/*
* Init specified element so it can be gradually revealed.
*
* Limitations:
* Only works on backgrounds with a solid color.
*
* @param options = {
* id:'box3'
* ,background='#ffffff' //default
* ,delay='0' //default
* }
*
*/
$.fn.initReveal = function (options) {
console.log('-------------');
console.log('selector:' + this.selector);
var parent = $(this).parent();
//grab a copy of the contents, then remove it from DOM
var contents = $(this).clone();
$(this).empty();
var revealHtmlBlock = "<div class='reveal'> <div class='text reveal__inner reveal__inner-{class}'> </div> <div class='reveal__cover reveal__cover-{class}'> <div class='reveal__cover-section reveal__100'></div> <div class='reveal__cover-section reveal__90'></div> <div class='reveal__cover-section reveal__80'></div> <div class='reveal__cover-section reveal__70'></div> <div class='reveal__cover-section reveal__60'></div> <div class='reveal__cover-section reveal__50'></div> <div class='reveal__cover-section reveal__40'></div> <div class='reveal__cover-section reveal__30'></div> <div class='reveal__cover-section reveal__20'></div> <div class='reveal__cover-section reveal__10'></div> </div> </div>";
revealHtmlBlock = replaceAllInstances(revealHtmlBlock, "{class}", options.id);
$(revealHtmlBlock).appendTo(parent);
contents.appendTo($('.reveal__inner-' + options.id));
//handle options
//delay
if (options.delay === undefined) {
console.log('delay set to 0');
options.delay = 0; //set default
} else {
console.log('delay set to:' + options.delay);
}
var revealElementFunction = function (options) {
$(this).performReveal(options);
};
//background
if (options.background !== undefined) {
$('.reveal__cover-' + options.id + ' .reveal__cover-section').css({'background-color': options.background});
}
//trigger the reveal at the specified time, unless auto is present and set to false
if (options.auto === undefined || (options.auto !== undefined && options.auto)) {
setTimeout(function () {
console.log('call');
revealElementFunction(options);
}, options.delay);
}
//trigger on-visible
if (options.trigger !== undefined) {
var revealOnScreenIntervalIdMap = {};
function uncoverText() {
var onscreen = $('.reveal__inner-box4').isOnScreen();
if ($('.reveal__inner-' + options.id).isOnScreen()) {
$('.reveal__cover-' + options.id).addClass('reveal__uncovered');
revealOnScreenIntervalIdMap[options.id] = window.clearInterval(revealOnScreenIntervalIdMap[options.id]);
}
}
function showTextWhenVisible() {
revealOnScreenIntervalIdMap[options.id] = setInterval(uncoverText, 800);
}
showTextWhenVisible();
}
};
//--------------------
/*
* trigger options:
* immediately (on page load)
* on event, eg. onclick
* on becoming visible, after it scrolls into view, or is displayed after bein ghidden
*
* @param options = {
* id:'box3'
* }
*
*/
$.fn.performReveal = function (options) {
var _performReveal = function () {
$('.reveal__cover-' + options.id).addClass('reveal__uncovered');
};
//allow time for init code to complete
setTimeout(_performReveal, 250);
};
有没有人知道如何让它一个字一个字地工作,而不是一行一行地工作。它会创建所需的跨距,并根据设置的间隔值淡入
var fadeInterval = 300
$('h1').html(function(_, txt){
var words= $.trim(txt).split(' ');
return '<span>' + words.join('</span> <span>') + '</span>';
}).find('span').each(function(idx, elem){
$(elem).delay(idx * fadeInterval).fadeIn();
});
var fadeInterval=300
$('h1').html(函数(x,txt){
var words=$.trim(txt).split(“”);
返回“”+单词。连接(“”)+“”;
}).find('span')。每个(函数(idx,elem){
$(elem).delay(idx*fadeInterval.fadeIn();
});
答案是如何将每个单词都用
包装起来,然后逐渐消失。这一定是一种更简单的方法,我已经知道我可以把它隔开,但是每个单词都会同时消失,我必须用不同的时间来计时。不,你不能在文本节点中处理单个单词这是一个很好的练习:这将是一个非常好的堆栈片段示例:@Nenotlep请随意创建它,老实说,我更喜欢使用其他工具,如fiddle或plunker,因为它们更灵活,可以处理绝对好这正是我想要的,非常感谢。
.reveal {
position: relative;
overflow: hidden;
}
/*initial - hidden*/
.reveal .reveal__cover {
position: absolute;
top: 0;
left: -250px;
height: 100%;
margin: 2px;
width: calc(100% + 250px);
}
.reveal .reveal__cover.reveal__uncovered {
position: absolute;
top: 0;
left: 100%;
height: 100%;
width: calc(100% + 250px);
margin: 2px;
transition: left 2500ms ease-out 0ms;
}
.reveal__cover-section {
height: 100%;
float: right;
/* NOTE: Background must match existing background */
/*background: #000;*/
background: #fff;
width: 2%;
}
.reveal__10 {
opacity: 0.1;
}
.reveal__20 {
opacity: 0.2;
}
.reveal__30 {
opacity: 0.3;
}
.reveal__40 {
opacity: 0.4;
}
.reveal__50 {
opacity: 0.5;
}
.reveal__60 {
opacity: 0.6;
}
.reveal__70 {
opacity: 0.7;
}
.reveal__80 {
opacity: 0.8;
}
.reveal__90 {
opacity: 0.9;
}
.reveal__100 {
opacity: 1;
width: 82%;
}
var fadeInterval = 300
$('h1').html(function(_, txt){
var words= $.trim(txt).split(' ');
return '<span>' + words.join('</span> <span>') + '</span>';
}).find('span').each(function(idx, elem){
$(elem).delay(idx * fadeInterval).fadeIn();
});