js string loop All In One

js string loop All In One

String to Array

1. Array.from

const str = 'ABC';

for (const item of Array.from(str)) {
  console.log(item);
}

2. Array.prototype.split

const str = 'ABC';

for (const item of str.split('')) {
  console.log(item);
}

3. [...string]

destructuring assignment

const str = 'ABC';

for (const item of [...str]) {
  console.log(item);
}

4. Object.assign

const str = 'ABC';

for (const item of Object.assign([], str)) {
  console.log(item);
}

??? JSON.parse ❌

conststr = 'abc';

JSON.parse("[" + str + "]");

const str = 'a,b,c';

JSON.parse("[" + str + "]");

for

1. for...of

const str = 'ABC';

for (const item of str) {
  console.log(item);
}

2. for await...of

const str = 'ABC';

for await (const item of str) {
  console.log(item);
}

3. for...in

const str = 'ABC';

for (const index in str) {
  console.log(str[index], index);
}

4. for

const str = 'ABC';

for (let i = 0; i < str.length; i++) {
  console.log(str[i], i);
}

refs

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...of

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String

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