30 lines
613 B
TypeScript
30 lines
613 B
TypeScript
/**
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* Check if the string parses as single digit
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*
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* @param str String to test
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* @returns Result of the test
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*/
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export function isDigit(str: string) {
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return RegExp(/^\d$/g).test(str)
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}
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/**
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* Check if the string parses as an int
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*
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* @param str String to test
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* @returns Result of the test
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*/
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export function isInt(str: string) {
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return RegExp(/^[0-9]*$/g).test(str)
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}
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/**
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* Check if the string parses as a signed int (negative or positive)
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*
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* @param str String to test
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* @returns Result of the test
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*/
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export function isSignedInt(str: string) {
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return RegExp(/^[-+]?[0-9]+$/g).test(str)
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}
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