Remove property for all objects in array

javascript javascript-objects
Zack Argyle picture Zack Argyle · Aug 8, 2013 · Viewed 91.1k times · Source

I want to remove the bad property from every object in the array. Is there a better way to do it than using a for loop and deleting it from every object?

var array = [{"bad": "something", "good":"something"},{"bad":"something", "good":"something"},...];

for (var i = 0, len = array.length; i < len; i++) {
  delete array[i].bad;
}

Just seems like there should be a way to use prototype, or something. I don’t know. Ideas?

Answer

piotr_cz picture piotr_cz · Oct 19, 2017

With ES6, you may deconstruct each object to create new one without named attributes:

const newArray = array.map(({dropAttr1, dropAttr2, ...keepAttrs}) => keepAttrs)

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