TypeScript Core Types

Syntax

let variableName: VariableType;
function functionName(parameterName: VariableType, parameterWithDefault: VariableType = ParameterDefault, optionalParameter?: VariableType, …variardicParameter: VariableType[]): ReturnType { /*…*/};

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TypeScript core types:

*TypeScript Core Types

*String Literal Types

*Intersection Types

*Types in function arguments and return value. Number

*Types in function arguments and return value. String