How to Check if a String Contains Text from an Array of Substrings in JavaScript?

Checking Text Presence in Arrays Using JavaScript

In JavaScript, determining if a string includes text from an array of substrings can be achieved in several ways.

Array some Method

This method provides a concise approach to test for matching substrings:

<code class="javascript">if (substrings.some(v => str.includes(v))) {
    // At least one substring was found
}</code>

Regular Expressions

Regular expressions offer another option, allowing you to search for multiple substrings concurrently:

<code class="javascript">if (new RegExp(`(${substrings.join('|')})`).test(str)) {
    // At least one substring was found
}</code>

Custom Function

If neither of these built-in methods meets your specific needs, you can create a custom function to perform the check:

<code class="javascript">function substringCheck(substrings, str) {
    for (let i = 0; i < substrings.length; i++) {
        if (str.indexOf(substrings[i]) >= 0) {
            return true;
        }
    }
    return false;
}</code>

Example Usage:

<code class="javascript">const substrings = ["one", "two", "three"];
let str = "this has one";

if (substringCheck(substrings, str)) {
    console.log(`Match found in "${str}"`);
} else {
    console.log(`No match found in "${str}"`);
}</code>

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