How to convert instance of any type to string?

How to convert instance of any type to string?

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I'm implementing a function that receives an argument which it needs to convert to its string representation.

If a given object implements a toString() method, then the function should use it. Otherwise, the function can rely on what the JavaScript implementation offers.

What I come up with is like this:

var convert = function (arg) {
  return (new String(arg)).valueOf();
}

I'm not sure you even need a function, but this would be the shortest way:

function( arg ) {
    return arg + '';
}

Otherwise this is the shortest way:

arg += '';

Converting a value to string in JavaScript, The constructor produces an instance of the type String (an object). The latter is hardly ever useful in JavaScript, which is why you can usually  Now I want to compare the printHello with a string type and cannot achieve it because printHello is of type instance. Is there a way to capture the output of print printHello code and use it for comparison or convert the type of printHello to string and I can use it for other string comparisons? Any help is appreciated.


value = value+"";

Java Convert Object to String, Java Convert Object to String example and examples of string to int, int to string, string to date, date to string, string to long, long to string, string to char, char to  Since item.type used in ngTemplateOutlet is of type string i am suspecting it is not getting resolved to templateReference variable. How can i convert string to a templateReference instance? Demonstration - See this link for example and verify console for the error


String(null) returns - "null"

String(undefined) returns - "undefined"

String(10) returns - "10"

String(1.3) returns - "1.3"

String(true) returns - "true"

I think this is a more elegent way.

Type Conversions, If the string is not a valid number, the result of such a conversion is NaN . For instance: let age = Number ( "an arbitrary  str(any_var) or any_var.__str__() – Kedar.Aitawdekar Sep 15 '16 at 16:49 @Kedar.Aitawdekar: Even if there is noticeable difference in execution time (which I doubt, but I encourage you to vefiry it using timeit module), you should use str(any_var) since it's more readable for human and allows to benefit from cases when any_var defines


All data types in JavaScript inherit a toString method:

('hello').toString();   // "hello"
(123).toString();       // "123"
([1,2,3]).toString();   // "1,2,3"
({a:1,b:2}).toString(); // "[object Object]"
(true).toString();      // "true"

Object to primitive conversion, In the chapter Type Conversions we've seen the rules for numeric, string For instance, Date objects (to be covered in the chapter Date and time) For an object-to-string conversion, when we're doing an operation on an  I am working on a Go module implementation to abstract communication with other peers. The idea behind the module is to send/receive messages through a MQ in a standard message format that can carry


The other answers are incomplete when it comes to a JSON object passed. So I made this one and it works for all:

var getString = (o) => {
    if (o) {
        if (typeof o == 'string') {
            return o;
        } else {
            return JSON.stringify(o);
        }
    } else {
        return null;
    }
}

Python Type Conversion and Type Casting (With Examples), We converted num_str from string(higher) to integer(lower) type using int() function to perform the addition. After converting num_str to an integer value, Python is  The Convert-AzSqlInstanceDatabaseVulnerabilityAssessmentScan cmdlet converts a scan results, that resides in the customer storage, identified by the ScanId parameter


Data Type and Type Conversion in JavaScript, For that moment, the string acts like an object, an instance of the String class. If you invoke a string method on non-string data, a TypeError will be triggered. The ChangeType(Object, Type, IFormatProvider) method can convert a nullable type to another type. However, it cannot convert another type to a value of a nullable type, even if conversionType is the underlying type of the Nullable<T>. To perform the conversion, you can use a casting operator (in C#) or a conversion function (in Visual Basic).


Object.ToString Method (System), ToString method to return a string that represents the object instance. using System; public class Automobile { private int _doors; private string _cylinders;  For Microsoft .NET, this parameter passes an instance of the System.Type type. For Visual C++ component extensions (C++/CX), this parameter passes a TypeName structure value. TypeName::Kind contains the simple string name of the type, similar to Microsoft .NET's Type.Name.


class Any in scala, This method is used to cast the receiver object to be of type T0 . def, equals (arg0 java.lang.String. Returns a string representation of the object. It is reflexive: for any instance x of type Any , x.equals(x) should return true . It is symmetric: for  The String(describing:) initializer is the preferred way to convert an instance of any type to a string. If the passed instance conforms to Custom String Convertible, the String(describing:) initializer and the print(_:) function use the instance’s custom description property.