[toc] ## 查看當前location對象 ``` console.log(location); ```  ``` function showLoc() { var oLocation = window.location, aLog = ["Property (Typeof): Value", "window.location (" + (typeof oLocation) + "): " + oLocation ]; for (var sProp in oLocation){ aLog.push(sProp + " (" + (typeof oLocation[sProp]) + "): " + (oLocation[sProp] || "n/a")); } alert(aLog.join("\n")); } showLoc(); ``` ## location和location.href和location.assign() MDN文檔中說`window.location`這貨是個只讀屬性，但又說這貨可以被賦值。。。 emmm...你別聽它的 除此之外`window.location=`和`window.location.href=`和`window.location.assign()`是等價的 ### href支持hash 且如果賦的是一個hash值(比如`#123`)，它會自動識別，并在原本的location地址末尾追加上(`原先的地址#123`) ## location.reload：強制從服務器重新加載當前頁面 ``` window.location.reload(true); ``` ## location.replace ``` function reloadPageWithHash() { var initialPage = window.location.pathname; window.location.replace('http://example.com/#' + initialPage); } ``` ## location.search：向當前服務器地址發送query  ``` function sendData (sData) { window.location.search = sData; } ``` ### 封裝一個query對象 ``` var oGetVars = {}; if (window.location.search.length > 1) { for (var aItKey, nKeyId = 0, aCouples = window.location.search.substr(1).split("&"); nKeyId < aCouples.length; nKeyId++) { aItKey = aCouples[nKeyId].split("="); oGetVars[decodeURIComponent(aItKey[0])] = aItKey.length > 1 ? decodeURIComponent(aItKey[1]) : ""; } } // alert(oGetVars.yourVar); ``` 同樣可以通過一個匿名構造函數來獲取，這樣只聲明了一個全局變量。 ``` var oGetVars = new (function (sSearch) { if (sSearch.length > 1) { for (var aItKey, nKeyId = 0, aCouples = sSearch.substr(1).split("&"); nKeyId < aCouples.length; nKeyId++) { aItKey = aCouples[nKeyId].split("="); this[decodeURIComponent(aItKey[0])] = aItKey.length > 1 ? decodeURIComponent(aItKey[1]) : ""; } } })(window.location.search); // alert(oGetVars.yourVar); ``` ### 獲取query對象中的鍵值 ``` function loadPageVar (sVar) { return decodeURI(window.location.search.replace(new RegExp("^(?:.*[&\\?]" + encodeURI(sVar).replace(/[\.\+\*]/g, "\\$&") + "(?:\\=([^&]*))?)?.*$", "i"), "$1")); } alert(loadPageVar("name")); ``` ### 更多請查看MDN case 8: ... [MDN](https://developer.mozilla.org/zh-CN/docs/Web/API/Window/location)