update README for JavaScript

This commit is contained in:
2024-04-28 00:18:39 +03:00
parent 3581b1f8a3
commit 3c5f55f5f6
13 changed files with 24 additions and 5 deletions

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let cats = ['Bob', 'Willy', 'Mini'];
// pop(): Remove an item from the end of an array
// pop() returns the removed item
cats.pop(); // ['Bob', 'Willy']
// push(): Add items to the end of an array
// push() returns the new array length
cats.push('Mini'); // ['Bob', 'Willy', 'Mini']
// shift(): Remove an item from the beginning of an array
// shift() returns the removed item
cats.shift(); // ['Willy', 'Mini']
// unshift(): Add items to the beginning of an array
// unshift() returns the new array length.
cats.unshift('Puff', 'George'); // ['Puff', 'George', 'Willy', 'Mini']

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// arr.forEach(function callback(currentValue, index, array) {
// your iterator
// }[, thisArg]);
Синтаксис
arr.forEach(function callback(currentValue, index, array) {
//your iterator
}[, thisArg]);