substring

Checking if a string contains a substring is a common task in JavaScript programming. In this blog, we will explore different ways to accomplish this and find the best approach to use. The simplest and preferred method is to use the includes() method on a string. Introduced in ES6/ES2015, this method returns true if the string contains the specified substring, and false otherwise. 'a nice string'.includes('nice') // true Please note that includes() is supported in all modern browsers except Internet Explorer....

In JavaScript, there are several ways to extract a substring from a string until a specific character is encountered. This can be useful when you want to retrieve the first part of a string before a certain delimiter, such as a hyphen ("-"). One simple approach is to use the split() method, which splits a string into an array of substrings based on a specified delimiter. By specifying the hyphen as the delimiter, we can extract the desired substring by accessing the first element of the resulting array....