Can anyone suggest the most efficient way to filter out objects from JSON data that contain a specific term or keyword?
Here's an example of my JSON data:
json = [{
"name":"John",
"age":30,
"cars":"BMW"
},
{
"name":"Micheal",
"age":30,
"cars":"Ford,BMW"
},
{
"name":"Andy",
"age":29,
"cars":"Ford"
},
{
"name":"Andy",
"age":29,
"cars":"Ford,Toyota"
}];
I need to remove any objects that include the keyword "BMW".
To achieve this, the most efficient method is to utilize Array.filter():
var list = [{ "name":"John", "age":30, "cars":"BMW" }, { "name":"Micheal", "age":30, "cars":"Ford,BMW" }, { "name":"Andy", "age":29, "cars":"Ford" }, { "name":"Andy", "age":29, "cars":"Ford,Toyota" }];
var updatedList = list.filter(({cars})=> !cars.includes("BMW"));
console.log(updatedList);When it comes to removing an element from an array of objects based on a specific string, the go-to method is using Array.filter. However, another approach that can be taken is using Array.reduce like shown below:
var arr =[{ "name":"John", "age":30, "cars":"BMW" }, { "name":"Micheal", "age":30, "cars":"Ford,BMW" }, { "name":"Andy", "age":29, "cars":"Ford" }, { "name":"Andy", "age":29, "cars":"Ford,Toyota" }];
var newarr = arr.reduce((acc, elem) => !elem.cars.includes("BMW") ? acc.concat(elem) : acc, []);
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