html5 – 正确的方式使用Modernizr来检测IE？

Modernizr不会检测到浏览器，它检测到哪些功能和功能存在，这是整个jist的想要做的。

你可以尝试钩在一个简单的检测脚本，像这样，然后使用它来做出选择。我还包括版本检测，以防万一需要。如果你只想检查任何版本的IE，你可以找到值为“MSIE”的navigator.userAgent。

var BrowserDetect = {
        init: function () {
            this.browser = this.searchString(this.dataBrowser) || "Other";
            this.version = this.searchVersion(navigator.userAgent) || this.searchVersion(navigator.appVersion) || "UnkNown";
        },searchString: function (data) {
            for (var i = 0; i < data.length; i++) {
                var dataString = data[i].String;
                this.versionSearchString = data[i].subString;

                if (dataString.indexOf(data[i].subString) !== -1) {
                    return data[i].identity;
                }
            }
        },searchVersion: function (dataString) {
            var index = dataString.indexOf(this.versionSearchString);
            if (index === -1) {
                return;
            }

            var rv = dataString.indexOf("rv:");
            if (this.versionSearchString === "Trident" && rv !== -1) {
                return parseFloat(dataString.subString(rv + 3));
            } else {
                return parseFloat(dataString.subString(index + this.versionSearchString.length + 1));
            }
        },dataBrowser: [
            {String: navigator.userAgent,subString: "Edge",identity: "MS Edge"},{String: navigator.userAgent,subString: "MSIE",identity: "Explorer"},subString: "Trident",subString: "Firefox",identity: "Firefox"},subString: "Opera",identity: "Opera"},subString: "OPR",subString: "Chrome",identity: "Chrome"},subString: "Safari",identity: "Safari"}       
        ]
    };
    
    BrowserDetect.init();
    document.write("You are using <b>" + BrowserDetect.browser + "</b> with version <b>" + BrowserDetect.version + "</b>");

然后，您可以简单地检查：

BrowserDetect.browser == 'Explorer';
BrowserDetect.version <= 9;