方法说明:
输出规范格式的path字符串。
语法:
path.normalize(p)
由于该方法属于path模块,使用前需要引入path模块(var path= require(“path”) )
例子:
path.normalize('/foo/bar//baz/asdf/quux/..') // returns '/foo/bar/baz/asdf'
源码:
// windows version exports.normalize = function(path) { var result = splitDeviceRe.exec(path), device = result[1] || '', isUnc = device && device.charAt(1) !== ':', isAbsolute = exports.isAbsolute(path), tail = result[3], trailingSlash = /[\\\/]$/.test(tail); // If device is a drive letter, we'll normalize to lower case. if (device && device.charAt(1) === ':') { device = device[0].toLowerCase() + device.substr(1); } // Normalize the tail path tail = normalizeArray(tail.split(/[\\\/]+/).filter(function(p) { return !!p; }), !isAbsolute).join('\\'); if (!tail && !isAbsolute) { tail = '.'; } if (tail && trailingSlash) { tail += '\\'; } // Convert slashes to backslashes when `device` points to an UNC root. // Also squash multiple slashes into a single one where appropriate. if (isUnc) { device = normalizeUNCRoot(device); } return device + (isAbsolute ? '\\' : '') + tail; };