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kdubbels/getType.js

Last active June 3, 2021 17:49
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Get the type of a value from its prototype
Raw
getType.js
function getType(obj) {
// slice first 8 characters of, e.g., "[object String]" or "[object Object]" to get type
return Object.prototype.toString.call(obj).slice(8, -1).toLowerCase();
}
getType("foo"); // "string"
getType([]); // "array"
getType({}); // "object"
getType(new Set()); // "set"
getType(true); // "boolean"
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