jsvascript判断数据类型

function getType(val){this.val = valthis.isInt = function(val){ ???if((typeof(val)==‘number‘)||(val instanceof Number)){ ???????if(/^\d*$/.test(val)){ ???????????return true ???????}else{ ???????????return false ???????} ???}else{ ???????return false ???}}this.isFloat = function(val){ ???if((typeof(val)==‘number‘)||(val instanceof Number)){ ???????if(/^\d*\.\d*$/.test(val)){ ???????????return true ???????}else{ ???????????return false ???????} ???}else{ ???????return false ???}}this.isString = function(val){ ???if((typeof(val)==‘string‘)||(val instanceof String)){ ???????return true ???}else{ ???????return false ???}}this.isBoolean = function(val){ ???if((typeof(val)==‘boolean‘)||(val instanceof Boolean)){ ???????return true ???}else{ ???????return false ???}}this.isArray = function(val){ ???if(val instanceof Array){ ???????return true ???}else{ ???????return false ???}}this.isObject = function(val){ ???if(val instanceof Object && typeof val.length == ‘undefined‘){ ???????return true ???}else{ ???????return false ???}}this.dump = function(){ ???var val = this.val ???var isint = this.isInt(val) ???var isfloat = this.isFloat(val) ???var isstring = this.isString(val) ???var isbool = this.isBoolean(val) ???var isarray = this.isArray(val) ???var isobject = this.isObject(val) ???if(isint){ ???????return ‘int‘ ???}else if(isfloat){ ???????return ‘float‘ ???}else if(isstring){ ???????return ‘string‘ ???}else if(isbool){ ???????return ‘boolean‘ ???}else if(isarray){ ???????return ‘array‘ ???}else if(isobject){ ???????return ‘object‘ ???}}}var a = new getType(1)var aa = a.dump()var b = new getType(1.1)var bb = b.dump()var c = new getType(‘hello‘)var cc = c.dump()var d = new getType(true)var dd = d.dump()var e = new getType([1,2])var ee = e.dump()var f = new getType({name:‘lee‘})var ff = f.dump()console.log(aa)console.log(bb)console.log(cc)console.log(dd)console.log(ee)console.log(ff)

intfloatstringbooleanarrayobject