Hello I would like to ask for help on filtering my Array currently I have a list of array that contains words but I want to filter out those with symbol ("#") to be remove on the array
function InitializeV3() {
var req = SymbolList; //obj with symbol property
for (var i = 0; i < req.lenght; i++) {
if (req[i].smybol.includes("#")) {
req.splice(req[i], 1);
}
}
console.log(req);
};
For a simple array you can do it like this with the filter method:
var req = ['test','#test1','#test2','test3','test4'];
var result = req.filter(item => !item.includes("#"));
console.log(result);And if you have an array of objects:
var req = [{symbol: 'test'},{symbol: '#test1'},{symbol: '#test2'},{symbol: 'test3'},{symbol: 'test4'}]
var result = req.filter(item => !item.symbol.includes('#'));
console.log(result);
function InitializeV3() {
// For simple array
var req = ['test',
'#test1',
'#test2',
'test3',
'test4'
]
var filtered = req.filter(item => !item.includes('#'))
console.log(filtered)
};
InitializeV3();
// For array of objects
var req = [{
symbol: 'test'
}, {
symbol: '#test1'
}, {
symbol: '#test2'
}, {
symbol: 'test3'
}, {
symbol: 'test4'
}]
// Use the following
var filtered = req.filter(item => !item.symbol.includes('#'))
console.log(filtered)First of all - req array should contain objects (current syntax is incorrect):
var req = [
{ symbol: 'test' },
{ symbol: '#test1' },
// ...
];
Then you can try with:
const filteredReq = req.filter(item => item.symbol.indexOf('#') === -1);
You can loop over all the keys. But if you have symbol multiple times as key only the last data will be saved.
let SymbolList = {
symbol0:'test',
symbol1:'#test1',
symbol2: '#test2',
symbol3:'test3',
symbol4: 'test4'
};
function InitializeQuotesV3(req) {
for (key in req) {
req[key] = req[key].replace(/#/g,"");
}
return req;
};
console.log(InitializeQuotesV3(SymbolList));Better you can use JS Regex Regex
var req = [{symbol:'test'} ,
{symbol:'#test1'},
{symbol: '#test2'},
{symbol:'test3'} ,
{symbol: 'test4'}];
let hasHash = /#/;
for (var i = req.length - 1; i >= 0; i--) {
if (hasHash.test(req[i].symbol)) {
req.splice(i,1);
}
}
console.log(req);
