easeOutInQuad返回错误"easeOutQuad“未定义

Question

我有一个jQuery动画，它在结束时使用默认的swing缓动太慢了。我尝试了线性选项，但它在接近尾声时看起来也很慢。我浏览并尝试了几个找到here的轻松功能。因为我有几个其他的动画运行延迟来同步它们，似乎任何与原始的swing easing有太多不同的easing功能都会抛出一切不同步的方式。经过一些搜索，我找到了一个easeOutInQuad函数，它的图形看起来像是swing函数的逆函数。我认为与swing函数相反(或接近相反)的缓和函数不太可能改变运行动画的总时间。下面是我在代码中使用的easeOutInQuad和相关的easeOutQuad和easeInQuad函数：

            $(function(){$.extend($.easing,{
    easeOutQuad:function(e,f,a,h,g){
        return -h*(f/=g)*(f-2)+a;
    },
    easeInQuad:function(e,f,a,h,g){
        return h*(f/=g)*f+a;
    },
    easeOutInQuad:function(e,f,a,h,g){
        if(f<g/2){
            return easeOutQuad(f*2,a,h/2,g);
        }return easeInQuad((f*2)-g,a+h/2,h/2,g);
    }
});});

由于某些原因，我得到一个easeOutQuad是未定义的错误，当我运行动画。我对jQuery有些陌生。任何帮助都是非常感谢的。

下面是我正在使用的其余代码，以供参考：

$(document).ready(function() {
var fC_duration = 10000;
//flyingCrow synchronization *No Edit*
var rW_delay = 0.021*fC_duration;
var uFin_delay = 0.183*fC_duration;
var uFout_delay = 0.025*fC_duration;
var mF_delay = 0.225*fC_duration;
var dF_delay = 0.242*fC_duration;
//bruce2 and and hand FadeOut synchronization *No Edit*
var b2_delay = 0.133*fC_duration;
//synchronize cardGrab with flyingCrow *No Edit*
var fCgC_sync = 0.417*fC_duration;
// Syncs completion of bruce animations with start of flyingCrow
var bFc_sync = fC_duration+3000;
$(function(){$.extend($.easing,{
    easeOutQuad:function(e,f,a,h,g){
        return -h*(f/=g)*(f-2)+a;
    },
    easeInQuad:function(e,f,a,h,g){
        return h*(f/=g)*f+a;
    },
    easeOutInQuad:function(e,f,a,h,g){
        if(f<g/2){
            return easeOutQuad(f*2,a,h/2,g);
        }return easeInQuad((f*2)-g,a+h/2,h/2,g);
    }
});});
// lock scroll position, but retain settings for later
function lockScroll(){
    var html = jQuery('html'); // it would make more sense to apply this to body, but IE7 won't have that
    var scrollPosition = [
    self.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
    self.pageYOffset || document.documentElement.scrollTop  || document.body.scrollTop
    ];
    html.data('scroll-position', scrollPosition);
    html.data('previous-overflow', html.css('overflow'));
    html.css('overflow', 'hidden');
    window.scrollTo(scrollPosition[0], scrollPosition[1]);
}
function unlockScroll(){
    // un-lock scroll position
    var html = jQuery('html');
    var scrollPosition = html.data('scroll-position');
    html.css('overflow', html.data('previous-overflow'));
    window.scrollTo(scrollPosition[0], scrollPosition[1]);
}
lockScroll();
$(".bruce").fadeTo(3000, 1, function() {
    $(".question").animate({"opacity": 1}, "fast");
    $(".question").delay(4500).animate({"opacity": 0}, "fast", function() {
        $(".bruce").fadeTo(2500, 0);
        $(".bruce2").delay(1700).fadeTo(50, 1);
        $(".shake").delay(1700).fadeTo(50, 1, function() {
            $(".solution").delay(1600).animate({"opacity": 1}, "fast");
        });
    });
});
setTimeout(function() {
    $(".crowTree").delay(250).animate({"opacity": 0}, 200);
    $(".flyingCrow").delay(350).animate({
        width: "1215px",
        height: "860px",
        marginLeft: "-130%",
        marginTop: "300px"},
        {
        duration: fC_duration,
        queue: false,
        easing:'easeOutInQuad'
    });
    $(".raiseWings").animate({"opacity": 1}, "fast", function () {
        $(".raiseWings").delay(rW_delay).animate({"opacity": 0}, "fast");
    });
    $(".upFlap").delay(uFout_delay).animate({"opacity": 1}, "fast", function() {
        $(".upFlap").delay(uFin_delay).animate({"opacity": 0}, "fast");
    });
    $(".midFlap").delay(mF_delay).animate({"opacity": 1}, "fast", function() {
        $(".midFlap").animate({"opacity": 0}, "fast");
    });
    $(".downFlap").delay(dF_delay).animate({"opacity": 1}, "fast", function() {
        $(".downFlap").animate({"opacity": 0}, 1, function() {
            $(".midFlap").animate({"opacity": 1}, 1, function() {
                $(".midFlap").delay(100).animate({"opacity": 0}, 1, function() {
                    $(".upFlap").animate({"opacity": 1}, 1, function() {
                        $(".solution").animate({"opacity": 0}, "fast");
                    });
                });
            });
        });
    });
    setTimeout(function() {
        $(".upFlap").animate({"opacity": 0}, 1, function() {
            $(".grabCard").animate({"opacity": 1}, 1, function() {
                $(".grabbedCard").animate({"opacity": 0}, 1, function() {
                    $(".hand, .bruce2").fadeTo(b2_delay, 0);
                });
            });
        });
    },fCgC_sync);
    setTimeout(function() {
        unlockScroll();
        $('html, body').animate({scrollTop:$(document).height()}, 2000);
    },fC_duration);
},bFc_sync);

})；

Answer 1

你的代码...

if(f<g/2){
            return easeOutQuad(f*2,a,h/2,g);
        }return easeInQuad((f*2)-g,a+h/2,h/2,g)

；

easeOutQuad()不能像这样调用。