let array1 = [{id:"1"},{id:"2"},{id:"3"}]
let array2 = {id:"1"} delete array2 if there is array2 in array1, and add it if it doesn"t exist. How to judge the
array object?
what I am writing now:
`
let array1 = [{id:"1"},{id:"2"},{id:"3"}]
if(array1.length){
for(let i=0; i<=array1 .length; iPP){
if(array1 [i].id == array2 .id){
array1.splice(i,1)
}else{
array1.push(file)
}
}
}else{
array1.push(file)
}`
let array1 = [{id: '1'}, {id: '2'}, {id: '3'}];
let array2 = {id: '1'};
array1 = array1.filter(({id}) => id !== array2.id);
console.log(array1)write
if array2 is an array.let array1 = [{id: '1'}, {id: '2'}, {id: '3'}];
let array2 = [{id: '1'}];
array1 = array1.filter(({id}) => !array2.some(item => item.id === id));
console.log(array1)let array1 = [{id:'1'},{id:'2'},{id:'3'}]
let array2 = {id:'2'}
let index = -1;
if((index = array1.findIndex(v=>v.id==array2.id))>-1){
array1.splice(index,1)
}else{
array1.push(array2);
}
console.log(array1)var array1 = [{ id: '1' }, { id: '2' }, { id: '3' }];
var array2 = [{ id: '1' }];
function filter (...args) {
var map = {}
args.forEach(arr=>{
arr.forEach(v=>{
map[v.id] = v
})
})
return Object.entries(map).map(v=>v[1])
}