32 lines
942 B
JavaScript
32 lines
942 B
JavaScript
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function telephoneCheck(str) {
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const regex = /((^((\(\d{3}\))|(\d{3})))(\s?-?(\d{3}))(\s?-?\d{4})$)|(^1(((\s|-)\d{3})|(\s?-?\(\d{3}\)))(\s?-?\d{3}\s?-?\d{4}))/
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return regex.test(str);
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}
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// All of those should be true:
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let testsTrue = [
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telephoneCheck("555-555-5555"),
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telephoneCheck("(555)555-5555"),
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telephoneCheck("(555) 555-5555"),
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telephoneCheck("555 555 5555"),
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telephoneCheck("5555555555"),
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telephoneCheck("1 555 555 5555"),
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telephoneCheck("1 (555) 555-5555")
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]
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// All of those should be false:
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let testsFalse = [
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telephoneCheck("(555-555-5555"),
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telephoneCheck("(555)5(55?)-5555"),
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telephoneCheck("11 555-555-5555"),
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telephoneCheck("10 (757) 622-7382"),
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telephoneCheck("5555555"),
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telephoneCheck("555-5555"),
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telephoneCheck("55555555"),
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telephoneCheck("27576227382")
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]
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console.log("True: " + testsTrue);
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console.log("False: " + testsFalse);
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console.log("bla")
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