javascript find
const inventory = [
{name: 'apples', quantity: 2},
{name: 'cherries', quantity: 8}
{name: 'bananas', quantity: 0},
{name: 'cherries', quantity: 5}
{name: 'cherries', quantity: 15}
];
const result = inventory.find( ({ name }) => name === 'cherries' );
console.log(result) // { name: 'cherries', quantity: 5 }initialize a map js
let map = new Map()
map['bla'] = 'blaa'
map['bla2'] = 'blaaa2'
console.log(map) // Map { bla: 'blaa', bla2: 'blaaa2' }array mdn map
let new_array = arr.map(function callback( currentValue[, index[, array]]) {
// return element for new_array
}[, thisArg])mdn .map
const numbers = [1, 5, 10, 15];
const doubles = numbers.map(function(x) {
return x * 2;
});
// doubles is now [2, 10, 20, 30]
// numbers is still [1, 5, 10, 15]javascript map
The map() method creates a new array with the results of calling a provided function on every element in the calling array.mdn html map
<map name="primary">
<area shape="rect" coords="0,0,75,75" href="left.html">
</map>
<img usemap="#primary" src="https://placehold.it/350x150" alt="350 x 150 pic">Copyright © 2021 Codeinu
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