So first, let us take an array containing numerical values and remove negative values using the filter array function. Let us start with a simple array and later move on to an array containing objects. Similarly, websites with filters all make use of the JavaScript filter array function. We use the JavaScript filter array function to return freelancers containing the particular skillset.įurthermore, the JavaScript filter does not mutate the string but rather creates a new one hence the original string is not affected. We have all used filters on websites as they help us find things easily, the JavaScript filter array function is what facilitates this.įor example, in case you are looking for a freelancer with a JavaScript skillset. Practical uses of JavaScript filter function thisValue - Optional, this value present would be passed in case the parameter is empty.arr - The array object being called upon.
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