!snippet equality null vs undefined
!snippet equality null vs undefined. Topics on: null == undefined, null === undefined, !null, isNaN(1 + null), isNaN(null), isNaN(undefined), isNaN(1+ undefined
!snippet equality null vs undefined. Topics on: null == undefined, null === undefined, !null, isNaN(1 + null), isNaN(null), isNaN(undefined), isNaN(1+ undefined
.replace() is defined as: . Topics on: .replace() to escape all double quotes via RegExp Literal Notation, .replace() to escape all single quotes via RegExp Lit
0-15 in hexadecimal is defined as: 0123456789ABCDEF. Topics on: 16-31 in hexadecimal. Read more: JS, JS Language, Primitive, Number, Hexadecimal| FullStack Wiki
0-7 in octal is defined as: 01234567. Topics on: 8-16 in octal. Read more: JS, JS Language, Primitive, Number, Octal|FullStack Wiki by Roger J
64-bit is defined as: occupying 64 bits of Computer Memory. Topics on: bit. Read more: JS, JS Language, Primitive, Number, FP 64, 64 Bit, Computer, Memory| Wiki
Argument is defined as: Value import as Parameter input to function. Topics on: Variable. Read more: JS, JS Language, Primitive, Undefined, Argument, Value, Par
Array is defined as: ordered sequence of elements of any type (Primitive || Object). Topics on: Array, resizable, can contain mix of different data types, Zero-
Autoboxing is defined as: Global Object Wrapper for Primitive to share methods & properties. Topics on: Wrapper. Read more: JS, JS Language, Primitive, Autoboxi
base 8 is defined as: number rep by 8 digits (0-7). Topics on: . Read more: JS, JS Language, Primitive, Number, Octal, Base 8|FullStack Wiki by Roger J
bigint is defined as: Numeric Primitive Value to rep integer with arbitrary precision to store numbers > Number.MAX_SAFE_INTEGER. Topics on: . Read more: JS, JS
boolean is defined as: Logical Primitive Value = true || false. Topics on: . Read more: JS, JS Language, Primitive, Boolean, Primitive Value | Full-Stack Wiki
Boolean is defined as: Autoboxing Wrapper for boolean Primitive; converts Argument to boolean. Topics on: . Read more: JS, JS Language, Primitive, Autoboxing, W
Character is defined as: Symbol (letters, numbers & punctuation). Topics on: Emoji. Read more: JS, JS Language, Primitive, String, Character | Full-Stack Wiki
Character Encoding is defined as: (process) to map/enumerate graphical chars to rep digitally. Topics on: . Read more: JS, JS Language, Primitive, String, UTF 8
Coercion is defined as: (mechanism) to Implicit auto convert Type of Primitive Operand by JS Compiler. Topics on: . Read more: JS, JS Language, JS Operator, Coe
FP64 is defined as: 64-bit Double-Precision Floating-Point Format. Topics on: 64-bit. Read more: JS, JS Language, Primitive, Number, FP 64, 64 Bit |web-Dev Wiki
Hexadecimal is defined as: number system in base 16 rep by 16 symbols (0-9 & A-F). Topics on: sometimes shown as lowercase a-f, Hexadecimal numbers prefix with
Hexadecimal multiplication table. Topics on: . Read more: JS, JS Language, Primitive, Number, Hexadecimal|FullStack Wiki by Roger J
immutable is defined as: (of entity/variable) content cannot be altered. Topics on: Value of Primitive is immutable unlike the variable assigned to it, a primit
Infinity is defined as: Symbolic number to rep ♾. Topics on: . Read more: JS, JS Language, Primitive, Autoboxing, Wrapper, Number, Symbolic Number, Infinity
isNaN() is defined as: Instance Method returns boolean if Argument is NaN or not; applies Coercion. Topics on: Number.isNaN does not apply Coercion and will onl
isNaN(1 + null) is defined as: false. Topics on: 1+null, 1+undefined. Read more: JS, JS Language, Primitive, Null|FullStack Wiki by Roger J
isNaN(undefined) is defined as: true. Topics on: Coercion to NaN when called w/o Number namespace. Read more: JS, JS Language, Primitive, Null | Full-Stack Wiki
Minimalist is defined as: React focus to UI Primitive, defer other design concerns to React Stack. Topics on: not strongly opinionated like other UI frameworks
mutable is defined as: (typeof) Variable that can be changed. Topics on: In JavaScript, only Object& Array are mutable whereas Primitive Value are immutable. Re
NaN is defined as: Number Property to rep Value of Not-a-Number. Topics on: Number.NaN. Read more: JS, JS Language, Primitive, Autoboxing, Wrapper, Number, Symb
NaN === NaN is defined as: false. Topics on: NaN is not equal to anything - including itself!!, use isNaN() to compare if value = NaN. Read more: JS, JS Languag
null is defined as: Primitive Value rep absence of any value; explicitly empty. Topics on: !snippet equality null vs undefined. Read more: JS, JS Language, Prim
number is defined as: Primitive Value to rep FP64 numeric data Type. Topics on: FP64, can store Hexadecimal, binary or Octal, Octal, Hexadecimal. Read more: JS,
Number is defined as: Autoboxing Wrapper for number Primitive. Topics on: Number Static Property, Symbolic number, Number Instance Methods. Read more: JS, JS La
Number Instance Methods. Topics on: isNaN(). Read more: JS, JS Language, Primitive, Autoboxing, Wrapper, Number, Number Instance Methods|FullStack Wiki by Roger
Number Static Property. Topics on: Number.MAX_SAFE_INTEGER, Number.MIN_SAFE_INTEGER, Number.MAX_VALUE, Number.MIN_VALUE. Read more: JS, JS Language, Primitive,
Number.isNaN('string') is defined as: false. Topics on: Coercion NOT applied when Number.isNaN used. Read more: JS, JS Language, Primitive, Autoboxing, Wrapper,
Number.MAX_SAFE_INTEGER is defined as: (numeric constant) (2^53 - 1) limit for max safe precision for FP64. Topics on: JavaScript uses FP64 which can only safel
Number.MAX_VALUE is defined as: (numeric constant) for max possible rep number. Topics on: 7976931348623157e+308. Read more: JS, JS Language, Primitive, Autobox
Number.MIN_VALUE is defined as: (numeric constant) for min possible rep number. Topics on: 5e-324. Read more: JS, JS Language, Primitive, Autoboxing, Wrapper, N
numbers begin with 0. Topics on: JS Compiler will parse any number with leading zero as octal. Read more: JS, JS Language, Primitive, Number, Octal|web-Dev Wiki
Object is defined as: any non-Primitive Variable Type rep a collection of properties. Pass by reference. Topics on: Array, Date, Error, Factory Function, Functi
Octal is defined as: number system with base 8. Topics on: base 8, numbers begin with 0, Octal multiplication table, 0-7 in octal. Read more: JS, JS Language, P
Octal multiplication table. Topics on: . Read more: JS, JS Language, Primitive, Number, Octal|FullStack Wiki by Roger J
Primitive is defined as: non-Object base data-type UNNBBSS. Topics on: immutable, Autoboxing, number, bigint, boolean, string, symbol, null, undefined. Read mor
Primitive is defined as: ⚛ Simplest unit (to process) in Programming Language. Topics on: atomic element of expression in language (or even framework). Read mor
react-router-dom is defined as: React Lib for Routing Primitive to Client Routing & Server Side Render in Declarative Composable way. Topics on: react-router, R
Scripting Language is defined as: Programming Language with Primitives based on API calls to automate a pre-existing system. Topics on: typically also Interpret
string is defined as: Primitive Value rep an ordered sequence of Character. Topics on: Character, UTF-8, Unicode. Read more: JS, JS Language, Primitive, String,
String is defined as: Autoboxing Wrapper for string Primitive. Topics on: String Instance Methods, String.raw, String Concatenation, Tag Template Function. Read
String Instance Methods. Topics on: charAt(), CharCodeAt, concat(), fromCharCode, indexOf(), lastIndexOf(), match(), .replace(), search(), slice(), split(), sub
symbol is defined as: immutable constant Primitive Value to rep unique Object property keys. Topics on: to create a new symbol must call the new Symbol() Constr
Symbolic number is defined as: additional number Type incl. Topics on: Infinity, NaN. Read more: JS, JS Language, Primitive, Autoboxing, Wrapper, Number, Symbol
Tag Template Function is defined as: JS Syntax for function to parse Template Literal. Topics on: . Read more: JS, JS Language, Primitive, Autoboxing, Wrapper,
Typed Object is defined as: Type to ref any non-Primitive; as Record or Dictionary. Topics on: Index Signature, Generic Object Types, TS annotate the following
typeof null is defined as: 'object'. Topics on: !bug historical bug we're stuck with and can't fix w/o breaking the web!. Read more: JS, JS Language, Primitive
undefined is defined as: Primitive Value to rep Variable 'not initialized' or 'not existing' (for object property). Topics on: Argument. Read more: JS, JS Langu
Unicode is defined as: (standard) most popular Character Encoding with most language Character. Topics on: . Read more: JS, JS Language, Primitive, String, Char
UTF-8 is defined as: (standard) Character Encoding. Topics on: Character Encoding. Read more: JS, JS Language, Primitive, String, UTF 8, Character Encoding|Wiki
Variable is defined as: named ref (Identifier) bound to a Value. Topics on: a variable can be either a Primitive or Reference Value type. Read more: JS, JS Lang
Wrapper is defined as: Object to wrap & Encapsulation data. Topics on: String, Number, BigInt, Boolean, Symbol, All Primitive except for null & undefined have a