3 ways to use 'regex for decimal number' - JavaScript

3 examples of 'regex for decimal number' in JavaScript

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polkadot-js/apps

61 function getRegex (isDecimal: boolean): RegExp {
62   return new RegExp(
63     isDecimal
64       ? `^(0|[1-9]\\d*)(\\${KEYS.DECIMAL}\\d*)?$`
65       : '^(0|[1-9]\\d*)$'
66   );
67 }

topcoder-platform/community-app

68 function removeDecimal(num) {
69   const re = new RegExp('^-?\\d+');
70   return num.toString().match(re)[0];
71 }

airgap-it/airgap-wallet

5 public static validate(decimals: number): (control: FormControl) => { pattern: string } | null {
6   const regExpString: string = `^[0-9]+((\\.|,){1}[0-9]\\d{0,${decimals - 1}})?$`
7   const regExp: RegExp = new RegExp(regExpString)
8 
9   return (control: FormControl): { pattern: string } | null => {
10     const stringAmount: string = new BigNumber(control.value).toFixed()
11     if (stringAmount.match(regExp) === null) {
12       return { pattern: 'Pattern does not match.' }
13     }
14 
15     return null
16   }
17 }

61	function getRegex (isDecimal: boolean): RegExp {
62	return new RegExp(
63	isDecimal
64	? `^(0\|[1-9]\\d)(\\${KEYS.DECIMAL}\\d)?$`
65	: '^(0\|[1-9]\\d*)$'
66	);
67	}

68	function removeDecimal(num) {
69	const re = new RegExp('^-?\\d+');
70	return num.toString().match(re)[0];
71	}

5	public static validate(decimals: number): (control: FormControl) => { pattern: string } \| null {
6	const regExpString: string = `^[0-9]+((\\.\|,){1}[0-9]\\d{0,${decimals - 1}})?$`
7	const regExp: RegExp = new RegExp(regExpString)
8
9	return (control: FormControl): { pattern: string } \| null => {
10	const stringAmount: string = new BigNumber(control.value).toFixed()
11	if (stringAmount.match(regExp) === null) {
12	return { pattern: 'Pattern does not match.' }
13	}
14
15	return null
16	}
17	}

3 examples of 'regex for decimal number' in JavaScript

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