文章来源：jquery教程 - http://www.jq-school.com/Show.aspx?id=304
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41、原生ja
function IsURL(strUrl) {
var regular = /^\b(((https?|ftp):\/\/)?[-a-z0-9]+(\.[-a-z0-9]+)*\.(?:com|edu|gov|int|mil|net|org|biz|info|name|museum|asia|coop|aero|[a-z][a-z]|((25[0-5])|(2[0-4]\d)|(1\d\d)|([1-9]\d)|\d))\b(\/[-a-z0-9_:\@&?=+,.!\/~%\$]*)?)$/i
if (regular.test(strUrl)) {
return true;
}
else {
return false;
}
}42、原生jafunction getElementsByClassName(name) {
var tags = document.getElementsByTagName('*') || document.all;
var els = [];
for (var i = 0; i < tags.length; i++) {
if (tags.className) {
var cs = tags.className.split(' ');
for (var j = 0; j < cs.length; j++) {
if (name == cs[j]) {
els.push(tags);
break
}
}
}
}
return els
}43、原生jaString.prototype.startWith = function (s) {
return this.indexOf(s) == 0
}44、原生jaString.prototype.endWith = function (s) {
var d = this.length - s.length;
return (d >= 0 && this.lastIndexOf(s) == d)
}45、原生jafunction getIE(){
if (window.ActiveXObject){
var v = navigator.userAgent.match(/MSIE ([^;]+)/)[1];
return parseFloat(v.substring(0, v.indexOf(".")))
}
return false
}46、原生jafunction getPageHeight(){
var g = document, a = g.body, f = g.documentElement, d = g.compatMode == "BackCompat"
? a
: g.documentElement;
return Math.max(f.scrollHeight, a.scrollHeight, d.clientHeight);
}47、原生jafunction getPageScrollLeft(){
var a = document;
return a.documentElement.scrollLeft || a.body.scrollLeft;
}48、原生jafunction getPageViewWidth(){
var d = document, a = d.compatMode == "BackCompat"
? d.body
: d.documentElement;
return a.clientWidth;
}49、原生jafunction getPageWidth(){
var g = document, a = g.body, f = g.documentElement, d = g.compatMode == "BackCompat"
? a
: g.documentElement;
return Math.max(f.scrollWidth, a.scrollWidth, d.clientWidth);
}50、原生jafunction getPageScrollTop(){
var a = document;
return a.documentElement.scrollTop || a.body.scrollTop;
} 最佳答案
