我有一个旧网站上的代码。我想在我的自定义js文件中初始化此函数。但是我不明白如何在我的custom.js文件中调用此函数。实际上，此代码的行为就像一个可滚动的滑块，其行为是当我向下滚动到上一个和下一个滚动步骤时，其不透明度为0，当前步骤的不透明度为1。
(window.webpackJsonpOdmans = window.webpackJsonpOdmans || []).push([
[64], {
433: function(t, e, i) {},
435: function(t, e, i) {
var n = {
"./oddmans-cross-grey.svg": 436,
"./global-scroll.svg": 437
};
function s(t) {
var e = o(t);
return i(e)
}
function o(t) {
var e = n[t];
if (!(e + 1)) {
var i = new Error("Cannot find module '" + t + "'");
throw i.code = "MODULE_NOT_FOUND", i
}
return e
}
s.keys = function() {
return Object.keys(n)
}, s.resolve = o, t.exports = s, s.id = 435
},
436: function(t, e, i) {
"use strict";
i.r(e), e.default = {
id: "icon-oddmans-cross-grey-usage",
viewBox: "33 -33 88 88",
url: i.p + "scroll-steps.svg#icon-oddmans-cross-grey",
toString: function() {
return this.url
}
}
},
437: function(t, e, i) {
"use strict";
i.r(e), e.default = {
id: "icon-global-scroll-usage",
viewBox: "0 0 14 22",
url: i.p + "scroll-steps.svg#icon-global-scroll",
toString: function() {
return this.url
}
}
},
482: function(t, e, i) {
"use strict";
i.r(e), i(16), i(11), i(12), i(433);
var n = i(1),
s = (i(28), i(34), i(35), i(36), i(5), i(6), i(29), i(3), i(8), i(9), i(10), i(0)),
o = i(4),
r = i.n(o),
a = i(2);
function l(t) {
return (l = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function(t) {
return typeof t
} : function(t) {
return t && "function" == typeof Symbol && t.constructor === Symbol && t !== Symbol.prototype ? "symbol" : typeof t
})(t)
}
function h(t) {
return (h = Object.setPrototypeOf ? Object.getPrototypeOf : function(t) {
return t.__proto__ || Object.getPrototypeOf(t)
})(t)
}
function u(t, e) {
return (u = Object.setPrototypeOf || function(t, e) {
return t.__proto__ = e, t
})(t, e)
}
function c(t) {
if (void 0 === t) throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
return t
}
var d = function(t) {
function e() {
var t, i, n;
! function(t, i) {
if (!(t instanceof e)) throw new TypeError("Cannot call a class as a function")
}(this);
for (var s = arguments.length, o = new Array(s), r = 0; r < s; r++) o[r] = arguments[r];
return (i = !(n = (t = h(e)).call.apply(t, [this].concat(o))) || "object" !== l(n) && "function" != typeof n ? c(this) : n).setBinds = i.setBinds.bind(c(c(i))), a.f.isTouch && !a.f.deviceTypeByViewport !== a.c ? i.onTouchDetect() : (i.setBinds(), i.initContent()), i
}
var i;
return function(t, e) {
if ("function" != typeof e && null !== e) throw new TypeError("Super expression must either be null or a function");
t.prototype = Object.create(e && e.prototype, {
constructor: {
value: t,
writable: !0,
configurable: !0
}
}), e && u(t, e)
}(e, s.a), (i = [{
key: "setBinds",
value: function() {
this.showNextStep = this.showNextStep.bind(this), this.initContent = this.initContent.bind(this), this.onScroll = this.onScroll.bind(this), this.setIndex = this.setIndex.bind(this), this.change = this.change.bind(this), this.setHiddens = this.setHiddens.bind(this), this.addListeners = this.addListeners.bind(this), this.goScroll = this.goScroll.bind(this)
}
}, {
key: "onTouchDetect",
value: function() {
this.element.classList.add("scroll-steps--second-style")
}
}, {
key: "initContent",
value: function() {
this.steps = this.refs.steps, this.btn = this.refs.btn, this.cross = this.refs.cross, this.scrollIcon = this.refs.scrollIcon, this.toDown = !0, this.blockEvent = !1, this.duration = 600, this.index = 0, this.height = this.element.getBoundingClientRect().height;
for (var t = 0; t < this.steps.length; t++) this.steps[t].style.visibility = "hidden", this.steps[t].style.opacity = 0, this.steps[t].hiddenElements = function(t) {
if (Array.isArray(t)) {
for (var e = 0, i = new Array(t.length); e < t.length; e++) i[e] = t[e];
return i
}
}(e = this.steps[t].querySelectorAll(".hidden")) || function(t) {
if (Symbol.iterator in Object(t) || "[object Arguments]" === Object.prototype.toString.call(t)) return Array.from(t)
}(e) || function() {
throw new TypeError("Invalid attempt to spread non-iterable instance")
}(), this.steps[t].header = this.steps[t].querySelector(".scroll-steps__title");
var e;
this.setIndex(), this.currentStep.style.visibility = "", this.currentStep.style.opacity = 1, this.setHiddens(this.currentStep, "remove"), this.addListeners()
}
}, {
key: "addListeners",
value: function() {
var t = this;
this.btn.addEventListener("click", function() {
t.toDown = !0, t.goScroll(t.height)
}), document.body.addEventListener("wheel", this.onScroll)
}
}, {
key: "goScroll",
value: function(t) {
r()({
targets: "body, html",
duration: 500,
scrollTop: t,
easing: "easeInOutQuart"
})
}
}, {
key: "setHiddens",
value: function(t, e) {
for (var i = 0; i < t.hiddenElements.length; i++) t.hiddenElements[i].classList[e]("hidden")
}
}, {
key: "onScroll",
value: function(t) {
this.blockEvent && t.preventDefault();
var e = window.pageYOffset < .6 * this.height;
if (!this.blockEvent && e) {
var i = t.deltaY;
i > 0 && this.nextStep ? (t.preventDefault(), this.toDown = !0, this.change()) : i < 0 && this.previousStep && (t.preventDefault(), this.toDown = !1, window.pageYOffset > 0 && e && this.goScroll(0), this.change())
}
}
}, {
key: "change",
value: function() {
this.index >= 0 && this.index < this.steps.length && (this.blockEvent = !0, 0 === this.index && (this.scrollIcon.classList.add("hidden"), console.log("hided")), this.setHiddens(this.currentStep, "add"), r()({
targets: this.currentStep.header,
opacity: 0,
translateY: this.toDown ? "-50px" : "50px",
duration: .7 * this.duration,
easing: "easeInSine"
}), r()({
targets: this.currentStep,
opacity: 0,
translateY: [{
value: "-50%",
duration: 0
}, {
value: this.toDown ? "-90%" : "-10%",
duration: this.duration
}],
duration: this.duration,
easing: "easeInSine",
complete: this.showNextStep
}))
}
}, {
key: "showNextStep",
value: function() {
var t = this;
this.currentStep.style.visibility = "hidden";
var e = this.toDown ? this.nextStep : this.previousStep;
e.style.visibility = "", this.toDown ? this.index++ : this.index--, this.setIndex(), 0 === this.index && this.scrollIcon.classList.remove("hidden"), r()({
targets: this.cross,
rotate: [{
value: 0,
duration: 0
}, {
value: this.toDown ? 90 : -90,
duration: .7 * this.duration
}],
easing: "easeInOutSine"
}), r()({
targets: e.header,
opacity: [{
value: 0,
duration: 0
}, {
value: 1,
duration: .7 * this.duration
}],
translateY: [{
value: this.toDown ? "-50px" : "50px",
duration: 0
}, {
value: 0,
duration: .7 * this.duration
}],
easing: "easeOutSine"
}), r()({
targets: e,
opacity: [{
value: 0,
duration: 0
}, {
value: 1,
duration: this.duration
}],
translateY: [{
value: this.toDown ? "-10%" : "-90%",
duration: 0
}, {
value: "-50%",
duration: this.duration
}],
easing: "easeOutSine",
complete: function() {
t.blockEvent = !1, t.setHiddens(e, "remove")
}
})
}
}, {
key: "setIndex",
value: function() {
this.previousStep = this.steps[this.index - 1] || null, this.currentStep = this.steps[this.index], this.nextStep = this.steps[this.index + 1] || null
}
}]) && function(t, e) {
for (var i = 0; i < e.length; i++) {
var n = e[i];
n.enumerable = n.enumerable || !1, n.configurable = !0, "value" in n && (n.writable = !0), Object.defineProperty(t, n.key, n)
}
}(e.prototype, i), e
}(),
p = i(435);
p.keys().forEach(p), n.a.getInstance().define("scroll-steps", d)
}
},
[
[482, 0]
]
]);