10 examples of 'javascript check if string is number' in JavaScript

13
public isNumber(value: any) {
14
  return typeof value === 'number' && isFinite(value);
15
}

93
function isNumber( object ) {
94
95
  return typeof object == 'number';
96
}

62
function isNumber(value) {
63
    var patrn = /^(-)?\d+(\.\d+)?$/;
64
    if (patrn.exec(value) == null || value == "") {
65
        return false
66
    } else {
67
        return true
68
    }
69
}

17
export function isNumber(number) {
18
  return typeof number === 'number';
19
}

15
function number(value) {
16
    return typeof value === 'number' || value instanceof Number;
17
}

11
function isNumber(value) {
12
  return (value instanceof Number) || (typeof value == 'number');
13
}

1
function containsNumber(str) {
2
  return !!str.match(/\d/g);
3
}

40
export function isNumber(num) {
41
  return typeof num === 'number' && !Number.isNaN(num);
42
}

11
function isNumber(value) {
12
    return typeof value == "number";
13
}

1296
function isNumber(value) {
1297
  return typeof value == 'number' || toString.call(value) == numberClass;
1298
}