Functions
				
					
					Const compareId
					
						- compareId(a: string | number, b: string | number): boolean
						- 
							
							Parameters
								- 
									a: string | number
- 
									b: string | number
 Returns boolean
Const isJSON
					
						- isJSON(str: string): boolean
						- 
							
							ParametersReturns boolean
Const isMobAgent
					
						- isMobAgent(userAgent: string): boolean
						- 
							
							ParametersReturns boolean
Const isNotNullOrUndefined
					
						- isNotNullOrUndefined(val: any): boolean
						- 
							
							
							ParametersReturns boolean
Const isNull
					
						- isNull(val: any): val is null
						- 
							
							ParametersReturns val is null
Const isNullOrUndefined
					
						- isNullOrUndefined(val: any): boolean
						- 
							
							
							ParametersReturns boolean
Const isUndefined
					
						- isUndefined(val: any): val is undefined
						- 
							
							ParametersReturns val is undefined
 
		
	 
 
 
值存在