Questions tagged [primitive-types]
Built-in types in any programming language that are defined in an axiomatic way and cannot be divided into other types in the language.
primitive-types
819
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As a wrapper object in JavaScript, why can not use 'new' to create a BigInt in JavasScript? [duplicate]
There are 5 wrapper objects in JavaScript: Number, BigInt, String, Boolean, and Symbol.You can use 'new' to create a Number, String, Boolean, Symbol. But you can not use 'new' to create a BigInt. what ...
- 9
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1
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48
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Use WCF of .NET Framework to serialize a class as a primitive
I am using Windows Communication Foundation classes to serialize and deserialize classes to and from JSON in files via the DataContractJsonSerializer class. I know there are better ways to serialize ...
- 61
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How to highlight input text when the edit panel opens in Lightning Datatable?
I have a requirement to do the following in a Lightning data table:
When edit panel opens, the text inside should be selected. Today the default behavior is that pointer is at the end of the text (...
- 1
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How to detect auto-boxing and auto-unboxing in Kotlin?
I'm working on a fairly low-level Kotlin JVM library that deals a lot with Bytes and ByteArrays. As I'm dealing with large volumes of data, keeping performance of individual operations high is ...
- 7,114
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1
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NULL as an eighth 'primitive' data type [closed]
A mindless query arising from Java's less known data type 'null'.
Would somebody be able to clarify whether or not 'null' is a literal reserved by the Java language and thus the disparity between it ...
-2
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1
answer
56
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What are rules in casting primitive types in expressions in Java? [duplicate]
I'm trying to figure out why some castings work and why others do not. Can you explain to me why some of these examples work and others don't?
Setup:
I'm using jshell.
byte one = 1;
one ==> 1
...
- 59
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77
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PHP Dependency Injection resolving class with primitive dependencies
I think I'm doing something wrong when trying to write my own Dependency Injection Container. I'm looking at the laravel's one, and it states in a comment
// If the class is null, it means the ...
- 546
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1
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Given an unknown primitive type array in the form of an object, convert it to double array C#
I have searched previous questions here, but nothing quite answers exactly what I am looking for.
I am retrieving an array of primitive type via reflection using PropertyInfo in the form of type ...
- 165
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1
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383
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How to maintain a consistent encryption key in MongoDB client-side field level encryption?
I am using MongoDB client-side field level encryption to encrypt and decrypt data. However, I noticed that every time I execute the program, the primitive binary key changes. This makes it difficult ...
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3
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650
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Does C have a concept of primitive types and if so what are they?
For example java has 8 primitive types as documented by Oracle.
boolean, byte, short, char, int, long, float, double
C appears to have many, many types, but what if any are considered primitive ...
user18924622
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How to create a Double value from a Float value in Swift
I can't believe that I can't figure this out myself and I also cant find an answer online, but...
I'm working in Swift after a long break working on Dart and Java.
I have a situation where I have ...
- 7,221
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61
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Is there a way to find all the attributes of a primitive in JavaScript?
In Python, for example, I can use
dir(str)
to find all the attributes and methods of the string data type.
Is there something similar in Javascript?
Just want additional info on JavaScript primitives....
- 21
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1
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341
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why primitive types (eg. number) are assignable to object types(e.g. Number) but not vice versa?
TLDR version:
Why does TypeScript allow the following
let num: Number = new Number(1);
num = 1;
But does not allow this
let num: number = 1;
num = new Number(1)
It is a well-known fact that JS has ...
- 51
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2
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78
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Does the `===` operator in Javascript have separate definitions for primitives vs non-primitives?
With the === operator in Javascript, if it operators on primitives, it returns false if either the values are different or the types are different. If it's operating on non-primitives, it returns ...
- 1,111
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Javascript: Why don't array methods return a new array?
I understand that the reason methods on strings return a new string is that strings are immutable, so the method can't modify the string you pass to it.
With an array, if you pass it to a method, that ...
- 1,111