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Fix isNumber snippet and add test for NaN value

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This commit is contained in:
Marcin Kopa
2019-03-15 10:45:05 +01:00
parent 4f1d5892e8
commit 0daced5fd5
2 changed files with 7 additions and 3 deletions
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3
test/isNumber.test.js
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@ -10,3 +10,6 @@ test('passed argument is a number', () => {
test('passed argument is not a number', () => {
expect(isNumber('1')).toBeFalsy();
});
test('passed argument is not a number', () => {
expect(isNumber(NaN)).toBeFalsy();
});