CODEWITHSUNDEEP
javascriptstringsplittext-manipulation
A. Vasilev
A. Vasilev

Reputation: 13

Split string into array of exactly two parts when a number is encountered

Is there a way to split a string into an array of exactly two parts when a number is encountered (preferably using split())?

Examples:

Upvotes: 1

Views: 103

Answers (3)

ggorlen
ggorlen

Reputation: 56895

You can use / (?=\d+)/ to split on a space followed by a sequence of digit characters:

console.log(["Nutritional Value per 100 gram", "Protein (g) 4.27"]
  .map(s => s.split(/ (?=\d+)/)));

If you want to generalize this and not rely on the presence of a space before the digit sequence, try:

console.log(["Nutritional Value per100 gram", "Protein (g)4.27", "0a11b 2.2cc3"]
  .map(s => [...s.matchAll(/^\D+|(?:\d[\d.]*\D*)/g)]));

Upvotes: 1

xdeepakv
xdeepakv

Reputation: 8125

You can get index of first num using reg exce. Then can split.

const split = (str) => {
  const m = /\d/.exec(str);
  if (m) {
    const index = m.index;
    return [str.slice(0, index - 1), str.slice(index)];
  }
  return [str];
};
console.log(split("Nutritional Value per 100 gram"));
console.log(split("Protein (g) 4.27"));
// output: [ 'Nutritional Value per', '100 gram' ]
// output: [ 'Protein (g)', '4.27' ]

Upvotes: 0

dark_gf
dark_gf

Reputation: 726

const splitFunt = (text) => {
    const arrValues = text.match(/([^\s]+)/g);
    let firstPart = '';
    let lastPart = '';
    for (let i in arrValues) {
      if (i <= arrValues.length / 2) {
       firstPart += arrValues[i] + ' ';
      } else {
       lastPart += arrValues[i] + ' ';
      }
    }
    return [firstPart, lastPart];
}

console.log(splitFunt('Nutritional Value per 100 gram'));
console.log(splitFunt('Protein (g) 4.27'));

Upvotes: 0

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