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- var numberTag = '[object Number]';
- var objectProto = Object.prototype;
- var objectToString = objectProto.toString;
- function isObjectLike(value) {
- return !!value && typeof value == 'object';
- }
- function isNumber(value) {
- return typeof value == 'number' ||
- (isObjectLike(value) && objectToString.call(value) == numberTag);
- }
- module.exports = isNumber;
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