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Variables in standard JavaScript have no type attached, so any value (each value has a type) can be stored in any variable. Starting with ES6 , the 6th version of the language, variables could be declared with var for function scoped variables, and let or const which are for block level variables.
JavaScript Garden – collection of tips and documentation on JavaScript's quirks; JavaScript Guide – programmer's manual, from the Mozilla Developer Network; JavaScript reference – describes the language in detail. From the Mozilla Developer Network. JavaScript WikiBook – community-written introductory-level book on JavaScript, from ...
If X and Y are finite sets, then there exists a bijection between the two sets X and Y if and only if X and Y have the same number of elements. Indeed, in axiomatic set theory , this is taken as the definition of "same number of elements" ( equinumerosity ), and generalising this definition to infinite sets leads to the concept of cardinal ...
A module here refers to a subroutine of any kind, i.e. a set of one or more statements having a name and preferably its own set of variable names. Content coupling (high) Content coupling is said to occur when one module uses the code of another module, for instance a branch. This violates information hiding – a basic software design concept.
Let (A, ≤) and (B, ≤) be two partially ordered sets. A monotone Galois connection between these posets consists of two monotone [1] functions, F : A → B and G : B → A, such that for all a in A and b in B, we have F(a) ≤ b if and only if a ≤ G(b). In this situation, F is called the lower adjoint of G and G is called the upper adjoint ...
For three variables, the interaction information measures the influence of a variable on the amount of information shared between and . Because the term I ( X ; Y ∣ Z ) {\displaystyle I(X;Y\mid Z)} can be larger than I ( X ; Y ) {\displaystyle I(X;Y)} , the interaction information can be negative as well as positive.
The function block diagram (FBD) is a graphical language for programmable logic controller design, [1] that can describe the function between input variables and output variables. A function is described as a set of elementary blocks. Input and output variables are connected to blocks by connection lines.
Pearson's correlation coefficient is the covariance of the two variables divided by the product of their standard deviations. The form of the definition involves a "product moment", that is, the mean (the first moment about the origin) of the product of the mean-adjusted random variables; hence the modifier product-moment in the name.