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getType javascript Code Snippet in 2024

typebeginner

Last Updated: 20 April 2024

Returns the native type of a value.

  • Return 'undefined' or 'null' if the value is undefined or null.
  • Otherwise, use Object.prototype.constructor.name to get the name of the constructor.
const getType = v => (v === undefined ? 'undefined' : v === null ? 'null' : v.constructor.name);
getType(new Set([1, 2, 3])); // 'Set'

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