I need help removing an array from a multidimensional array if the id matches a given one.
var test_arr = [{"name":"qqq", "city":"it","id":"123456"}, {"name":"ggg", "city":"uk","id":"777456"}];
var result = test_arr.filter(function(v,i) {
if (v[0] === '123456'){ test_arr.splice(i,1) }
});
//alert( test_arr[0].id)
alert(result)
http://jsfiddle.net/ofLg0vq5/2/
Can someone guide me on how to achieve this?
The problem with your current approach is that you're not utilizing .filter correctly. The .filter method expects the function provided to return a boolean. If true is returned, the element will be kept in the new array. If it's false, the element gets excluded. Therefore, rather than attempting to remove an element from test_arr using .splice, employ .filter to determine what stays and what goes.
Additionally, note that in your case, v pertains to a specific element (an object) within your test_array. It implies that there's no need to target index 0 of the object; instead, retrieve the current object's id.
var test_arr = [{"name":"qqq", "city":"it","id":"123456"}, {"name":"ggg", "city":"uk","id":"777456"}];
test_arr = test_arr.filter(function(elem) {
return elem.id !== '123456';
});
console.log(test_arr); // [{"name": "ggg", "city": "uk", "id": "777456"}]If you prefer a more concise solution, you can utilize an arrow function combined with destructuring assignment:
test_arr = test_arr.filter(({id}) => id !== '123456'); // [{"name": "ggg", "city": "uk", "id": "777456"}]
var test_arr = [{"name":"qqq", "city":"it","id":"123456"}, {"name":"ggg", "city":"uk","id":"777456"}];
test_arr = test_arr.filter(({id}) => id !== '123456'); // [{"name": "ggg", "city": "uk", "id": "777456"}]
console.log(test_arr);@Nick previously provided a solution without using the .splice method.
However, if you still prefer using the .splice method for any reason, you can try the code below.
You were checking the id incorrectly in your previous solution. In the following solution, it will remove all objects with the id - 123456
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