I am using an array.filter() function to remove all the objects where one of their attribute is equal to any of the string in a given array. The objects in the array are crypto trades and I need to filter out the trades with the trade pairs that I do not want. How would I achieve this using the filter function? For now, I tried this which did not work evidently:
filteredPairs = filteredPairs.filter(
(pair) =>
!pair.symbol.includes(
"USDTBUSD",
"USDTUSDC",
"USDTUST",
"USDTUSDP",
"USDTDAI",
"BUSDUSDT",
"BUSDUSDC",
"BUSDUST",
"BUSDUSDP",
"BUSDDAI",
"USDCUSDT",
"USDCBUSD",
"USDCUST",
"USDCUSDP",
"USDCDAI",
"USTUSDT",
"USTBUSD",
"USTUSDC",
"USTUSDP",
"USTDAI",
"USDPUSDT",
"USDPBUSD",
"USDPUSDC",
"USDPUST",
"USDPDAI",
"DAIUSDT",
"DAIBUSD",
"DAIUSDC",
"DAIUSDP",
"DATUST"
)
);
This is not filtering out these pairs. Any insight would be helpful. Thank you.
This can be done in a single line.
// testing object
const filteredPairs = [
{
symbol: 'USDTBUSD',
},
{
symbol: 'abc',
},
{
symbol: 'BUSDUSDT',
},
{
symbol: '321',
},
];
// items we don't want
const blacklist = [
'USDTBUSD',
'USDTUSDC',
'USDTUST',
'USDTUSDP',
'USDTDAI',
'BUSDUSDT',
'BUSDUSDC',
'BUSDUST',
'BUSDUSDP',
'BUSDDAI',
'USDCUSDT',
'USDCBUSD',
'USDCUST',
'USDCUSDP',
'USDCDAI',
'USTUSDT',
'USTBUSD',
'USTUSDC',
'USTUSDP',
'USTDAI',
'USDPUSDT',
'USDPBUSD',
'USDPUSDC',
'USDPUST',
'USDPDAI',
'DAIUSDT',
'DAIBUSD',
'DAIUSDC',
'DAIUSDP',
'DATUST',
];
// filter
const newFilteredPairs = filteredPairs.filter(({ symbol }) => !blacklist.some((item) => symbol.includes(item)));
console.log(newFilteredPairs);