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The terms future, promise, delay, and deferred are often used interchangeably, although some differences in usage between future and promise are treated below. Specifically, when usage is distinguished, a future is a read-only placeholder view of a variable, while a promise is a writable, single assignment container which sets the value of the ...
React creates an in-memory data-structure cache, computes the resulting differences, and then updates the browser's displayed DOM efficiently. [31] This process is called reconciliation. This allows the programmer to write code as if the entire page is rendered on each change, while React only renders the components that actually change.
Immediately invoked function expressions may be written in a number of different ways. [3] A common convention is to enclose the function expression – and optionally its invocation operator – with the grouping operator, [4] in parentheses, to tell the parser explicitly to expect an expression.
The placeholder may be a variable name, or in some languages an arbitrary expression, in either case evaluated in the current context. String interpolation is an alternative to building string via concatenation , which requires repeat quoting and unquoting; [ 2 ] or substituting into a printf format string , where the variable is far from where ...
Agile is a set of principles and values for software development that prioritize flexibility, collaboration, and customer satisfaction. The four key values are: Individuals and interactions over processes and tools. Working software over comprehensive documentation. Customer collaboration over contract negotiation.
Image source: The Motley Fool. Centene (NYSE: CNC) Q4 2024 Earnings Call Feb 04, 2025, 8:30 a.m. ET. Contents: Prepared Remarks. Questions and Answers. Call ...
To be announced (TBA) is a placeholder term used very broadly in event planning to indicate that although something is scheduled or expected to happen, a particular aspect of it remains to be fixed or set.
In mathematics, a variable (from Latin variabilis, "changeable") is a symbol, typically a letter, that refers to an unspecified mathematical object. [1] [2] [3] One says colloquially that the variable represents or denotes the object, and that any valid candidate for the object is the value of the variable.