Ramziddin Makhmudov ramziddin
ramziddin
/ phone-input.ts
Last active
January 12, 2025 19:17
Uzbekistan phone number input component
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| import { ComponentProps, useState } from "react" | |
| function PhoneInput(props: ComponentProps<"input">) { | |
| const [value, setValue] = useState<string>("+998") | |
| const formattedValue = value | |
| .replaceAll(" ", "") // remove whitespace | |
| .slice(4) // strip the country code | |
| .match(/(\d{1,2})?(\d{1,3})?(\d{1,2})?(\d{1,2})?/)! // split into multiple components | |
| .toSpliced(0, 1, "+998") // replace global match with country code |
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| const isColorDark = color => { | |
| const c = color.substring(1); // strip # | |
| const rgb = parseInt(c, 16); // convert rrggbb to decimal | |
| const r = (rgb >> 16) & 0xff; // extract red | |
| const g = (rgb >> 8) & 0xff; // extract green | |
| const b = (rgb >> 0) & 0xff; // extract blue | |
| const luma = 0.2126 * r + 0.7152 * g + 0.0722 * b; // per ITU-R BT.709 | |
| const isDark = luma < 40; |