We are required to write a JavaScript function that takes in two strings say, str1 and str2. The function should determine whether or not str1 ends with str2. Our function should return a boolean on this basis.
Here’s our 1st string −
const str1 = 'this is just an example';
Here’s our 2nd string −
const str2 = 'ample';
Example
Following is the code −
const str1 = 'this is just an example'; const str2 = 'ample'; const endsWith = (str1, str2) => { const { length } = str2; const { length: l } = str1; const sub = str1.substr(l - length, length); return sub === str2; }; console.log(endsWith(str1, 'temple')); console.log(endsWith(str1, str2));
Output
This will produce the following output in console −
false true