10 examples of 'extract number from string javascript' in JavaScript

5
function extractNumber(string) {
6
	if (!regex.test(string)) {
7
		console.error('Imagemagick\'s compare method failed');
8
		console.error(string);
9
		return Infinity;
10
	}
11
12
	var match = string.match(regex);
13
	return +match[1];
14
}

259
extractNumber() {
260
    let char = this.source[this.cPointer];
261
    let number = "";
262
    while (/[\d\.]/.test(char)) {
263
        number += char;
264
        char = this.source[++this.cPointer];
265
    }
266
    return parseFloat(number);
267
}

42
function getNumber (str) {
43
  str = str.replace(/(invert)|(brightness)|(blur)|(contrast)|(grayscale)|(sepia)|(threshold)|(gamma)?\(/g, '').replace(')', '')
44
  if (str.indexOf('%') !== -1) {
45
    return Number(str.replace('%', '')) / 100
46
  } else if (str.indexOf('px') !== -1) {
47
    return Number(str.replace('px', ''))
48
  } else {
49
    return Number(str)
50
  }
51
}

212
function extractNumber(v) {
213
	return parseFloat(replace(v, /^[^\d-]+/));
214
}

1
function number(input: string | number): number {
2
   if (typeof input === 'string') {
3
      return parseInt(input.replace(/^\D+/g, ''), 10);
4
   }
5
6
   return 0;
7
}

15
function getNumFromStr(str) {
16
  return `${str.match(/\d+/)[0]}`;
17
}

15
function getNumbers(string) {
16
  if (isUndefined(string) || !isString(string)) {
17
    return '';
18
  }
19
20
  return String(string).replace(/\D+/g, '');
21
}

706
value: function extract(string, format, formatChunk) {
707
  var ignoreCase = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true;
708
709
  var targetFormat = ignoreCase ? format.toLowerCase() : format;
710
  if (targetFormat.includes(formatChunk)) {
711
    return parseInt(string.substr(targetFormat.indexOf(formatChunk), formatChunk.length));
712
  }
713
}

99
var parseNumber = function parseNumber(string) {
100
  return (string.match(numberAccept) || []).join('');
101
};

8
export function parseNumber(s) {
9
  s = String(s).replace(/[^\d-.]/g, '').replace(/\.$/, '');
10
  if (!s.match(NUMBER_RE)) { return null; }
11
  return parseFloat(s, 10);
12
}