Search for a string in all properties of an object in Angular 2

Question

How to search for a string in all properties of an object in Angular 2 with TS.

I have an array of customers rendered in a table with a search box, if the user ty

Answer 1

You can loop over the keys of the item and see if any of them include the string, and return true if any number of them match:

return items.filter(item =>
  Object.keys(item).some(k => item[k].includes(term.toLowerCase());
)

Answer 2

You need to apply null check and use .toString() otherwise if value will be number it will not be able to use toLowerCase() method and will raise error.

return items.filter(item =>
  Object.keys(item).some(
    k =>
      item[k] != null &&
      item[k]
        .toString()
        .toLowerCase()
        .includes(term.toLowerCase())
  )
);