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Returns the authority code (e.g., 'EPSG:4326') for the base coordinate system of this projection, or null if the base coordinate system is not found in any available database.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-07-13 UTC."],[[["Returns the authority code of the base coordinate system for the projection, such as 'EPSG:4326'."],["If the base coordinate system isn't found in available databases, it returns null."],["This function is used with the `Projection.crs()` syntax and returns a string value."],["It takes a single argument, 'this', which should be a Projection object."]]],[]]