How to remove array objects having property

Question

What is the easiest way to remove all objects from an array with a particular property = x?

Answer 1

Use _.filter

var result = _.filter(arr, function(item) {
  return !("prop" in item);
});

If you want to limit it to the immediate properties of each item, use

var result = _.filter(arr, function(item) {
  return !item.hasOwnProperty("prop");
});

Answer 2

It seems like the easiest way would be to use the filter method:

var newArray = _.filter(oldArray, function(x) { return !('prop' in x); });
// or
var newArray = _.filter(oldArray, function(x) { return !_.has(x, 'prop'); });

Or alternatively, the reject method should work just as well:

var newArray = _.reject(oldArray, function(x) { return 'prop' in x; });
// or
var newArray = _.reject(oldArray, function(x) { return _.has(x, 'prop'); });

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Update Given your updated question, the code should look like this:

var newArray = _.filter(oldArray, function(x) { return x.property !== 'value'; });

Or like this

var newArray = _.reject(oldArray, function(x) { return x.property === 'value'; });