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sakilk130/telephone-number-validator-freecodecamp.js

Last active May 30, 2021 14:29
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FreeCodeCamp JavaScript Project
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telephone-number-validator-freecodecamp.js
var re =
/^([+]?1[\s]?)?((?:[(](?:[2-9]1[02-9]|[2-9][02-8][0-9])[)][\s]?)|(?:(?:[2-9]1[02-9]|[2-9][02-8][0-9])[\s.-]?)){1}([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2}[\s.-]?){1}([0-9]{4}){1}$/;
function telephoneCheck(str) {
return re.test(str);
}
telephoneCheck('555-555-5555');
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