How to do a partial match filter on an array from all elements of another array-CodePudding

I'm trying to filter an array with partial matches from the entirety of another array. For example, the arrays are outlined below:

Array1 = 
     categories: 292300, 
     categories: 300, 
     categories: 292500280

Array2 = 
     300,
     498

With the filter, I would expect to return:

NewArray = 
     categories: 292300, 
     categories: 300

What is the best way to implement this? I've tried the code below with no luck:

  const NewArray = Array1.filter(Array1 => !(Array1.categories.includes(Array2)))

CodePudding user response：

Why new array also includes 292300 while it's not included in array2?

But if you want to filter array1 with data included in array2, there is the solution

const NewArray = Array1.filter(({ categories }) => Array2.includes(categories))

CodePudding user response：

  const Array1 = [{ categories: 292300 }, { categories: 300 }, { categories: 292500280 }];

  const Array2 = [300, 498];
  const newArray = [];

  Array2.forEach((el) => {
    Array1.forEach((element) => {
      if (element.categories.toString().includes(el.toString())) {
        newArray.push(element);
      }
    });
  });

CodePudding user response：

To do partal matching just need parse int to string

const arr1 = [{categories: 292300}, {categories: 300}, {categories: 292500280}];
const arr2 = [300, 498];

const result = arr1.filter(({ categories }) => 
  arr2.some((e) => String(categories).includes(String(e))));

console.log(result);

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