isString 
Functions to check the type of value if it's primitive or object string.
isString function 
ts
function isString(value?: unknown): booleanChecks if value is classified as a primitive string.
Parameters 
- value?: unknownThe value to check.
Return boolean 
true if value is a string, otherwise false.
isStringObject function 
ts
function isStringObject(value?: unknown): booleanChecks if value is classified as a String primitive or object.
Parameters 
- value?: unknownThe value to check.
Return boolean 
true if value is a string or String object, otherwise false.
