I have 2 arrays containing string A and B. I want to find all the strings A matches with B. Let's say:
A = ['Battery mAh', 'Ram', 'Camera', 'Screen', 'Storage(GB)']
B = ['battery', 'ram', 'storage', 'Processor']
Output array should be follwoing:
output = ['Battery mAh', 'Ram', 'Storage(GB)']
You can filter A and check if it contains any element that B contains:
A.filter( // get only the elements that matches
el => B.some( // check if there is any element in B that is contained in the current element of A
obj => el.toLowerCase().includes(obj.toLowerCase())
)
)
Returns:
["Battery mAh", "Ram", "Storage(GB)"]
That's a function doing that:
let items=[];
A.forEach(item => {
for (let i=0; i<B.length; i++) {
if (item.toLowerCase().includes(B[i]))
items.push(item);
}
});
return items;
You could convert array b into a regex, then filter array a based on whether or not a string matches this regex.
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions#Escaping
const escapeRegExp = string => string.replace(/[.*+\-?^${}()|[\]\\]/g, '\\$&');
const a = ['Battery mAh', 'Ram', 'Camera', 'Screen', 'Storage(GB)'];
const b = ['battery', 'ram', 'storage', 'Processor'];
const regex = new RegExp(b.map(escapeRegExp).join("|"), "i");
const result = a.filter(product => product.match(regex));
console.log(result);