웹 기술을 이용하여 개발을 하다보면, 각 브라우져별 호환성을 맞추기 위해 코딩을 다르게 해야 할 경우가 종종 생겨난다.
많은 자바스크립트 라이브러리들이 브라우져 호환성을 보장해주기도 하지만 때론 개발자의 손길이 필요 할 경우도 종종 생겨난다.
각 브라우져별로 지원하는 특이한 CSS, Javascript 특성으로 사용자가 사용중인 브라우져 종류를 알아내는 방법을 알아보자.
/* Chrome 24- and Safari 5- */
::made-up-pseudo-element, .selector {}Media Query/* Chrome, Safari 3+ */
@media screen and (-webkit-min-device-pixel-ratio:0) {}JavaScript/* Chrome */
var isChrome = !!window.chrome;
/* Firefox 1.5 */
body:empty .selector {} /* Firefox 2+ */
.selector, x:-moz-any-link {} /* Firefox 3+ */
.selector, x:-moz-any-link; x:default {} /* Firefox 3.5+ */
body:not(:-moz-handler-blocked) .selector {}Media Query/* Firefox 3.5+, IE 9/10, Opera */
@media screen and (min-resolution: +72dpi) {}
/* Firefox 3.6+ */
@media screen and (-moz-images-in-menus:0) {}
/* Firefox 4+ */
@media screen and (min--moz-device-pixel-ratio:0) {}JavaScript/* Firefox */
var isFF = !!navigator.userAgent.match(/firefox/i);
/* Firefox 2 - 13 */
var isFF = !!window.globalStorage;
/* Firefox 2/3 */
var isFF = /a/[-1]=='a';
/* Firefox 3 */
var isFF = (function x(){})[-5]=='x';
Miscellaneous/* Firefox 3+ */
@-moz-document url-prefix() {}
/* IE 6 and below */
* html .selector {}
.suckyie6.selector {} /* .suckyie6 can be any unused class */
/* IE 7 and below */
.selector, {}
/* IE 7 */
*:first-child+html .selector {}
.selector, x:-IE7 {}
*+html .selector {}
/* Everything but IE 6 */
html > body .selector {}
/* Everything but IE 6/7 */
html > /**/ body .selector {}
head ~ /* */ body .selector {}
/* Everything but IE 6/7/8 */
:root *> .selector {}
body:last-child .selector {}
body:nth-of-type(1) .selector {}
body:first-of-type .selector {}
Property/Value/* IE 6 */
.selector { _color: blue; }
.selector { -color: blue; }
/* IE 6/7 - any combination of these characters:
! $ & * ( ) = % + @ , . / ` [ ] # ~ ? : < > | */
.selector { !color: blue; }
.selector { $color: blue; }
.selector { &color: blue; }
.selector { *color: blue; }
/* ... */
/* IE 6/7 - acts as an !important */
.selector { color: blue !ie; }
/* string after ! can be anything */
/* IE 8/9 */
.selector { color: blue\0/; }
/* must go at the END of all rules */
/* IE 9/10 */
.selector:nth-of-type(1n) { color: blue\9; }
/* IE 6/7/8/9/10 */
.selector { color: blue\9; }
.selector { color/*\**/: blue\9; }
/* Everything but IE 6 */
.selector { color/**/: blue; }
Media Query/* IE 6/7 */
@media screen\9 {}
/* IE 6/7/8 */
@media \0screen\,screen\9 {}
/* IE 8 */
@media \0screen {}
/* IE 8/9/10 & Opera */
@media screen\0 {}
/* IE 9/10, Firefox 3.5+, Opera */
@media screen and (min-resolution: +72dpi) {}
/* IE 9/10 */
@media screen and (min-width:0\0) {}
/* IE 10+ */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {}
/* Everything but IE 6/7/8 */
@media screen and (min-width: 400px) {}
JavaScript/* IE <= 8 */
var isIE = '\v'=='v';
/* IE 6 */
(checkIE = document.createElement("b")).innerHTML = "";
var isIE = checkIE.getElementsByTagName("i").length == 1;
/* IE 7 */
(checkIE = document.createElement("b")).innerHTML = "";
var isIE = checkIE.getElementsByTagName("i").length == 1;
navigator.appVersion.indexOf("MSIE 7.")!=-1
/* IE 8 */
(checkIE = document.createElement("b")).innerHTML = "";
var isIE = checkIE.getElementsByTagName("i").length == 1;
/* IE 9 */
(checkIE = document.createElement("b")).innerHTML = "";
var isIE = checkIE.getElementsByTagName("i").length == 1;
/* IE 10 */
var isIE = eval("/*@cc_on!@*/false") && document.documentMode === 10;
/* IE 10 */
var isIE = document.body.style.msTouchAction != undefined;
/* Safari 2/3 */
html[xmlns*=""] body:last-child .selector {}
html[xmlns*=""]:root .selector {}
/* Safari 2/3.1, Opera 9.25 */
*|html[xmlns*=""] .selector {}
/* Safari 5- and Chrome 24- */
::made-up-pseudo-element, .selector {}
Media Query/* Safari 3+, Chrome */
@media screen and (-webkit-min-device-pixel-ratio:0) {}JavaScript/* Safari */
var isSafari = /a/.__proto__=='//';
