How Do I filter an array by checking if an array is listed in the array?
cryptoData: Array(100) 0: {CoinInfo: {…}, RAW: {…}, DISPLAY: {…}}
I am trying to check if cryptoData (Array) contains the DISPLAY array and if it does not contain DISPLAY - remove it from the cryptoData array and set the filterArray with only the elements that contain the DISPLAY Array.
My attempt:
var filterdArray = cryptoData.filter(function (el) {
return cryptoData[el] === 'DISPLAY';
});
this.setState({
cryptos: filterdArray,
refreshing: false,
});
As the value is an object you can use hasOwnProperty to check if the object has a property.
var filterdArray = cryptoData.filter(function (el) {
return el.hasOwnProperty('DISPLAY');
});
this.setState({
cryptos: filterdArray,
refreshing: false,
});