Exemple #1
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 it('should not validate unicode', () => {
   expect(alphaNum('🎉')).to.be.false
 })
Exemple #2
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 it('should validate null', () => {
   expect(alphaNum(null)).to.be.true
 })
Exemple #3
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 it('should validate undefined', () => {
   expect(alphaNum(undefined)).to.be.true
 })
Exemple #4
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 it('should not validate padded letters', () => {
   expect(alphaNum(' abc ')).to.be.false
 })
Exemple #5
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 it('should validate alphaNum', () => {
   expect(alphaNum('abc123')).to.be.true
 })
Exemple #6
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 it('should validate english letters', () => {
   expect(alphaNum('abcxyzABCXYZ')).to.be.true
 })
Exemple #7
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 it('should not validate space', () => {
   expect(alphaNum(' ')).to.be.false
 })
Exemple #8
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 it('should validate numbers', () => {
   expect(alphaNum('1234567890')).to.be.true
 })
Exemple #9
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 it('should validate empty string', () => {
   expect(alphaNum('')).to.be.true
 })