10 examples of 'check string is number js' in JavaScript
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13 public isNumber(value: any) { 14 return typeof value === 'number' && isFinite(value); 15 }
1 function containsNumber(str) { 2 return !!str.match(/\d/g); 3 }
15 function number(value) { 16 return typeof value === 'number' || value instanceof Number; 17 }
17 export function isNumber(number) { 18 return typeof number === 'number'; 19 }
11 function isNumber(value) { 12 return (value instanceof Number) || (typeof value == 'number'); 13 }
93 function isNumber( object ) { 94 95 return typeof object == 'number'; 96 }
41 function isNumber(str) { 42 return /^[-]?\d+(\.\d*)$/.test(str); 43 }
119 function checkIsNumberArrayString(str) { 120 if (!str.match(/^\s*(((\s*(-|\+)?((\.\d+)|(\d+\.\d+)|(\d+)|(\d+(\.\d+)?e(-|\+)?(\d+)))\s*,){0,2}(\s*(-|\+)?((\.\d+)|(\d+\.\d+)|(\d+)|(\d+(\.\d+)?e(-|\+)?(\d+)))))|((\s*(-|\+)?((\.\d+)|(\d+\.\d+)|(\d+)|(\d+(\.\d+)?e(-|\+)?(\d+)))\s){0,2}(\s*(-|\+)?((\.\d+)|(\d+\.\d+)|(\d+)|(\d+(\.\d+)?e(-|\+)?(\d+))))))\s*$/g)) 121 throw new Error(`Attribute must be a comma- or space-separated sequence of up to three numbers, for example "1 2.5 3". Yours was "${str}".`) 122 }
25 export function isNumber(value: unknown): value is number { 26 return typeof value === "number" || value instanceof Number; 27 }
40 export function isNumber(num) { 41 return typeof num === 'number' && !Number.isNaN(num); 42 }