<.> jump.js ?????? ???? ?? JavaScript ??? ???? ???? ?? ????? ??? ?????? ??????.
<.> ?? ?????? ? ?? ???? ???? ?? ES6?? ES5? ????? jump.js ?? ??? ??????.- ???? ???? ??? ????? ????? ???? ??? ????? ???? ??? ??? ??????.
-
?? ?? ?? ??? ?? ?? ???? ??? ???? ??? ??????? ???? ?? ??? ?? ?? ????? ??????.
? ??? ???? ?????? ?? ??? ????? ?????? - ?? ????? ???? ??? JavaScript ?? ????? ?????.
requestAnimationFrame??? ? ?? ??? ??? ???, ??? ?????? ??? ??? ? ??? ????, ?? ???? ???? ???? ???? ?????. -
? ??? Adrian Sandu, Chris Perry, Jérémy Heleine ? Mallory van Achterberg? ?? ??????. Sitepoint?? ??? ???? ???? Sitepoint? ?? ?? ?? ??? ?????!
Smooth Scrolling? ?? ? ??? ????? ??? ????? ????? ??? ????? ?????. ??? ?????. -
jQuery ????? jQuery ?? ?????? ?? ??? ???? ??? ?? ??? ???? ????? ??? JavaScript ???? ??? ????. ?????, ??? Jump.js ?????? ???? ??? ????. scroll-behavior????? ? ?? ? ??? ?? ??? ?? ? ??? ??? ?? ?? ??? ??? ????. ? ???? ??? ?? ? ???? ?? ?? ?? ???? ?? ??? ?????. ?? ?? ???? ??? ??? ????? ?? HTML ???? ??? ??? ?? ????? ?????. CSS? ???? ??? ??? ??? ???? (?? ??? ??) ????? ???? ????? ??? ?? ??? ? ????. -
?? ?? ??? Github?? ?? ? ????.
jump.js? ??? ????? ?? 10 ??? ???? ???? "??"?????? ?????. ?? ???? ????? ?? ??? ??? ??????. ??? requestAnimationFrame PolyFill? ???? ?? ??????? ??? ?? ????.
??, ES6 ?? ? ??? ???????. ????? ES6 ???? ?????
???? ???? ? ??? ?? ????????. ? ??? ? ???? ??? ? ??? ?????? ? ???? ?? ????? ???? ES6 ??? ??? ?? ?????. ?? ?? ?? ?? ??? ??? ?? ??? ??? ????. ?????, ?? ???? ??? ??? ?? IIFE (?? ?? ???)? ???? ??? ????.
<code>import easeInOutQuad from './easing'
export default class Jump {
jump(target, options = {}) {
this.start = window.pageYOffset
this.options = {
duration: options.duration,
offset: options.offset || 0,
callback: options.callback,
easing: options.easing || easeInOutQuad
}
this.distance = typeof target === 'string'
? this.options.offset + document.querySelector(target).getBoundingClientRect().top
: target
this.duration = typeof this.options.duration === 'function'
? this.options.duration(this.distance)
: this.options.duration
requestAnimationFrame(time => this._loop(time))
}
_loop(time) {
if(!this.timeStart) {
this.timeStart = time
}
this.timeElapsed = time - this.timeStart
this.next = this.options.easing(this.timeElapsed, this.start, this.distance, this.duration)
window.scrollTo(0, this.next)
this.timeElapsed ? requestAnimationFrame(time => this._loop(time))
: this._end()
}
_end() {
window.scrollTo(0, this.start + this.distance)
typeof this.options.callback === 'function' && this.options.callback()
this.timeStart = false
}
}
</code> ??? ???
? ????? ??? ?? ??? ??? ? ??? TOC? ?? ?? ??? ???? ?? (TOC)? ???? ????. ??? ?? ?? ??? ?? ???? ?? ? ????. ???? ???? ?? ????? :
???? ?? ?? ??? ????? ?????? ? ?? CSS ??? ?? ? ????. ?? ?? ??? ? ?? JavaScript ??? ?????. ?? ??? ?? ? ???????? ????
??? ???
<code>var jump = (function() {
var o = {
jump: function(target, options) {
this.start = window.pageYOffset
this.options = {
duration: options.duration,
offset: options.offset || 0,
callback: options.callback,
easing: options.easing || easeInOutQuad
}
this.distance = typeof target === 'string'
? this.options.offset + document.querySelector(target).getBoundingClientRect().top
: target
this.duration = typeof this.options.duration === 'function'
? this.options.duration(this.distance)
: this.options.duration
requestAnimationFrame(_loop)
},
_loop: function(time) {
if(!this.timeStart) {
this.timeStart = time
}
this.timeElapsed = time - this.timeStart
this.next = this.options.easing(this.timeElapsed, this.start, this.distance, this.duration)
window.scrollTo(0, this.next)
this.timeElapsed ? requestAnimationFrame(_loop)
: this._end()
},
_end: function() {
window.scrollTo(0, this.start + this.distance)
typeof this.options.callback === 'function' && this.options.callback()
this.timeStart = false
}
};
var _loop = o._loop.bind(o);
// Robert Penner's easeInOutQuad - http://robertpenner.com/easing/
function easeInOutQuad(t, b, c, d) {
t /= d / 2
if(t t--
return -c / 2 * (t * (t - 2) - 1) + b
}
return o;
})();
</code>
??, ?? ?? ? ??? ??? (Onclick)??? ?? ?? ??? ??? ??? ???? ???? ?? ??? ??? ??? ???????. ??? ?? ?? ???? ?? ? ? ???? ??? ?? isinpagelink ()? ??? ? ????. ??? ???? ??? ????? ??? ????.
??? ??? ?????? :
?? ???
<code>import easeInOutQuad from './easing'
export default class Jump {
jump(target, options = {}) {
this.start = window.pageYOffset
this.options = {
duration: options.duration,
offset: options.offset || 0,
callback: options.callback,
easing: options.easing || easeInOutQuad
}
this.distance = typeof target === 'string'
? this.options.offset + document.querySelector(target).getBoundingClientRect().top
: target
this.duration = typeof this.options.duration === 'function'
? this.options.duration(this.distance)
: this.options.duration
requestAnimationFrame(time => this._loop(time))
}
_loop(time) {
if(!this.timeStart) {
this.timeStart = time
}
this.timeElapsed = time - this.timeStart
this.next = this.options.easing(this.timeElapsed, this.start, this.distance, this.duration)
window.scrollTo(0, this.next)
this.timeElapsed ? requestAnimationFrame(time => this._loop(time))
: this._end()
}
_end() {
window.scrollTo(0, this.start + this.distance)
typeof this.options.callback === 'function' && this.options.callback()
this.timeStart = false
}
}
</code>
[]
<code>var jump = (function() {
var o = {
jump: function(target, options) {
this.start = window.pageYOffset
this.options = {
duration: options.duration,
offset: options.offset || 0,
callback: options.callback,
easing: options.easing || easeInOutQuad
}
this.distance = typeof target === 'string'
? this.options.offset + document.querySelector(target).getBoundingClientRect().top
: target
this.duration = typeof this.options.duration === 'function'
? this.options.duration(this.distance)
: this.options.duration
requestAnimationFrame(_loop)
},
_loop: function(time) {
if(!this.timeStart) {
this.timeStart = time
}
this.timeElapsed = time - this.timeStart
this.next = this.options.easing(this.timeElapsed, this.start, this.distance, this.duration)
window.scrollTo(0, this.next)
this.timeElapsed ? requestAnimationFrame(_loop)
: this._end()
},
_end: function() {
window.scrollTo(0, this.start + this.distance)
typeof this.options.callback === 'function' && this.options.callback()
this.timeStart = false
}
};
var _loop = o._loop.bind(o);
// Robert Penner's easeInOutQuad - http://robertpenner.com/easing/
function easeInOutQuad(t, b, c, d) {
t /= d / 2
if(t t--
return -c / 2 * (t * (t - 2) - 1) + b
}
return o;
})();
</code>
? ??? ???? ?? ?? ????? ?? ??? ?? ? ????.
<code>import easeInOutQuad from './easing'
export default class Jump {
jump(target, options = {}) {
this.start = window.pageYOffset
this.options = {
duration: options.duration,
offset: options.offset || 0,
callback: options.callback,
easing: options.easing || easeInOutQuad
}
this.distance = typeof target === 'string'
? this.options.offset + document.querySelector(target).getBoundingClientRect().top
: target
this.duration = typeof this.options.duration === 'function'
? this.options.duration(this.distance)
: this.options.duration
requestAnimationFrame(time => this._loop(time))
}
_loop(time) {
if(!this.timeStart) {
this.timeStart = time
}
this.timeElapsed = time - this.timeStart
this.next = this.options.easing(this.timeElapsed, this.start, this.distance, this.duration)
window.scrollTo(0, this.next)
this.timeElapsed ? requestAnimationFrame(time => this._loop(time))
: this._end()
}
_end() {
window.scrollTo(0, this.start + this.distance)
typeof this.options.callback === 'function' && this.options.callback()
this.timeStart = false
}
}
</code>
? ??? ??? ?? ?? ???? DOM ??? ?? ????? ??? ?? (? : ?? ?? ?? ??)?? ????? ????. ?? ? ????? (? : ????)? ??? ?? ??? ?? tabindex ??? -1? ????? (???? ???? ????? ???? ??? ?? ? ? ??). ??? ??? ?? ??? ????? ???? ?? ?? ?? ?? ??? ??? ??? ??????.
CSS ?? ???? ?? ?? ??? ??? ???? ????? ?????? ??? ??? ?????.
? ?? ?? ???? ????
? ????? ???? ?????. ? ??? ?? ?? ? ?? ?? (??)? ?? ??? ?????? ???? ??? ???? ????.
CSS-Scroll-Behavior? ??? ? ????? Caniuse.com? ???? ?? ?????? CSS-Scroll-Behavior ??? ??? ?????.
scroll-behavior.
??? ????? ?? ????? ???? ?? ????? ???? ???? ?? ?????. ??? ??? ??? ?? ?? ???? ????? ???? ?? CSS ??? ?????. auto
smooth ??
?? JavaScript
? ??? ???? FAQ (FAQS)
?????? ???? ?? ?? JavaScript? ???? ???? ???? ???? ??? ??????
? ???? ??? ??? ??? ???? ???? ???? ???? ??????.
window.scrollTo
behavior
smooth
<code>import easeInOutQuad from './easing'
export default class Jump {
jump(target, options = {}) {
this.start = window.pageYOffset
this.options = {
duration: options.duration,
offset: options.offset || 0,
callback: options.callback,
easing: options.easing || easeInOutQuad
}
this.distance = typeof target === 'string'
? this.options.offset + document.querySelector(target).getBoundingClientRect().top
: target
this.duration = typeof this.options.duration === 'function'
? this.options.duration(this.distance)
: this.options.duration
requestAnimationFrame(time => this._loop(time))
}
_loop(time) {
if(!this.timeStart) {
this.timeStart = time
}
this.timeElapsed = time - this.timeStart
this.next = this.options.easing(this.timeElapsed, this.start, this.distance, this.duration)
window.scrollTo(0, this.next)
this.timeElapsed ? requestAnimationFrame(time => this._loop(time))
: this._end()
}
_end() {
window.scrollTo(0, this.start + this.distance)
typeof this.options.callback === 'function' && this.options.callback()
this.timeStart = false
}
}
</code> ??? ? ??? ? ????. ?? ??? ????. your-element
? ???? ??? ??? ??? ???? ???? ??? ??? ??? ???? ??????.
?????? ????? ??? ???? ??? ?? ?? ? ? ????. ??? ? ???? ??? ???? ??? ?????? ? ? ???? ?? ??? ?? ??? ??? ??? ?? ? ????.
scrollTo ???? ?? behavior ??? ???? ??? ? ?? ??? ?????. ?? ??? ????. smooth
????? ??? ???? 100 ??? ???? ????? ????. smoothscroll-polyfill
? ???? ????? ???? ???? ?????? ?? ? ? ????.
Element.scrollIntoView
behavior
smooth
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???? ???? ??? ???? ??????? ?? ? ? ????.
keydown
window.scrollTo
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Clothoff.io
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JavaScript ??? ??? ?? ?? ? ?? ???? ????. ?? ???? ???, ??, ??, ?, ???? ?? ? ??? ?????. ?? ????? ?? ?? ? ? ??? ????? ?? ??? ??? ????. ??, ?? ? ??? ?? ?? ??? ??? ??? ???? ??? ??? ???? ??? ?? ??? ????. ?? ? ????? ??? ???? ? ??? ? ??? TypeofNull? ??? ?????? ??? ? ????. ? ? ?? ??? ???? ?????? ????? ???? ??? ???? ? ??? ? ? ????.
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