lodash map
const _quote_filter = _.map(quote_state, (val, key) => { if (val) { return key }})console.log(_quote_filter) //=> [ 'btc', undefined, undefined ]lodash map
const _quote_filter = _.map(quote_state, (val, key) => { if (val) { return key }})console.log(_quote_filter) //=> [ 'btc', undefined, undefined ]map loadash
function square(n) {
return n * n;
}
_.map([4, 8], square);
// => [16, 64]
_.map({ 'a': 4, 'b': 8 }, square);
// => [16, 64] (iteration order is not guaranteed)
var users = [
{ 'user': 'barney' },
{ 'user': 'fred' }
];
// The `_.property` iteratee shorthand.
_.map(users, 'user');
// => ['barney', 'fred']lodash map
const _markets_arr = []
_.map(markets, (val, key) => {
val.symbol = key
if (val.buys > 0) {
_markets_arr.push(val)
}
})
console.log(_markets_arr)
//=> [
{ buys: 3, sells: 1, symbol: 'DASH/BTC' },
{ buys: 3, sells: 2, symbol: 'ETH/BTC' }
]Copyright © 2021 Codeinu
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