matching strings dynamically using regex in javascript-CodePudding

I need to have the best requirement for matching two dynamic strings fetched from API.

Currently, I have two different objects that return strings dynamically. I need to perform a certain action if the strings are matched. The strings cases differ in some cases, they do not match completely.

To perform the equality (say partial one), I tried to utilize the power of regular expressions. But it doesn't seem to work for me.

const secondaryStringValue = 'accupuncture';
const mainStringValue = 'Accupuncture';

const matchBothStrings = `/${secondaryStringValue}/i`;

if (mainStringValue.match(matchBothStrings)) {
    alert('matched');
} else {
    alert('unmatched');
}

The values in both the variables secondaryStringValue & mainStringValue are obtained dynamically from the API from an array/object. For example purpose, I've extracted one of those values as a static string in variables.

But this solution doesn't seem to work. It always returns the output as 'unmatched' even when one of the results should match.

If I compare the strings statically like this:

const mainStringValue = 'Acupuncture';
if (mainStringValue.match(/acupuncture/i)) {
  alert('matched');
}
else {
 alert('unmatched');
}

this works, but I cannot use this since this is just a static comparison, not a dynamic one.

If anyone can help to resolve the same bit soon, it is highly appreciated.

Thanks in advance

CodePudding user response：

Move it into new RegExp(dynamicVariable, 'i')

const mainStringValue = 'Acupuncture';
var dynamicVariable = 'acupuncture';
var regex = new RegExp(dynamicVariable, 'i');
if (mainStringValue.match(regex)) {
  alert('matched');
}
else {
 alert('unmatched');
}