I have 2 arrays in javascript
Array 1
var columns=[{name: 'id', default: true}, {name: 'type', default: true},{name: 'typeName', default: true}, {name: 'client', default: false}];
Array 2
var unSelect=["id", "type", "typeName"]
Now I want a new array i.e Array 3 where only non-matching element matches
i.e name of column
In this case
var array 3=[{name: 'client', default: false}]
I have tried to splice, but my index is not matching.
Here is the simplest way to do it using Array.prototype.map function. This function can iterate an array and return what you want per every iteration.
var array3 = columns.map(function(item) {
if (unselected.indexOf(item.name) < 0) //see if the name of an element object is in the unselected array
return item; // if yes, return the element
})
try using filter as
var unSelect=["id", "type", "typeName"];
var array3 = columns.filter(function(obj){
return unSelect.indexOf( obj.name ) == -1;
});
DEMO
var columns = [{
name: 'id',
default: true
}, {
name: 'type',
default: true
}, {
name: 'typeName',
default: true
}, {
name: 'client',
default: false
}];
var unSelect = ["id", "type", "typeName"];
var array3 = columns.filter(function(obj) {
return unSelect.indexOf(obj.name) == -1;
});
console.log(array3);You could use a hash table as a reference for not wanted item for faster access than indexOf.
var columns = [{ name: 'id', default: true }, { name: 'type', default: true }, { name: 'typeName', default: true }, { name: 'client', default: false }],
unSelect = ["id", "type", "typeName"],
hash = Object.create(null),
result;
unSelect.forEach(function (a) {
hash[a] = true;
});
result = columns.filter(function (a) {
return !hash[a.name];
});
console.log(result);This would be my solution with Array.prototype.filter() & Array.prototype.some() combo.
var columns = [{name: 'id', default: true}, {name: 'type', default: true},{name: 'typeName', default: true}, {name: 'client', default: false}],
unSelect = ["id", "type", "typeName"],
filtered = columns.filter(f => !unSelect.some(e => e == f.name));
console.log(filtered);