Can you suggest a method using Lodash to remove specific rows from an array based on the value of a certain field within the array?

Currently, I am utilizing the following function:

   remove: function (arr, property, num) {
            for (var i in arr) {
                if (arr[i][property] == num)
                    arr.splice(i, 1);
            }
        },

Although this function is functional, now that my application has incorporated the _lodash library and is compatible with modern IE8 and above browsers, I am curious if there exists a more efficient way to achieve the same functionality using _lodash or alternative browser native methods.

javascriptlodash

Answer №1

It seems that lodash does not have a direct solution for this particular issue. Although it provides _.remove, this function returns a new array instead of modifying the existing one.

Additionally, there is a bug in your current `remove` function that may cause issues when dealing with arrays containing consecutive matching entries. To address this, consider looping backward through the array as demonstrated below:

remove: function (arr, property, num) {
            for (var i = arr.length - 1; i >= 0; --i) {
                if (arr[i][property] == num)
                    arr.splice(i, 1);
            }
        },

To see this fix in action, you can visit: http://jsbin.com/OTiZInU/2

Answer №2

If you're looking to manipulate arrays in JavaScript, consider using lodash functions like filter and remove:

arr = _.remove(arr, function(row){ return row[property] == num });

It's worth mentioning that with lodash, the original array remains unchanged when using these methods (unlike the example provided), so make sure to assign the result back to the original array like arr = ....

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