--- id: 56533eb9ac21ba0edf2244d8 title: Comparisons with the Logical And Operator challengeType: 1 videoUrl: 'https://scrimba.com/c/cvbRVtr' forumTopicId: 16799 dashedName: comparisons-with-the-logical-and-operator --- # --description-- Sometimes you will need to test more than one thing at a time. The logical and operator (`&&`) returns `true` if and only if the operands to the left and right of it are true. The same effect could be achieved by nesting an if statement inside another if: ```js if (num > 5) { if (num < 10) { return "Yes"; } } return "No"; ``` will only return "Yes" if `num` is greater than `5` and less than `10`. The same logic can be written as: ```js if (num > 5 && num < 10) { return "Yes"; } return "No"; ``` # --instructions-- Replace the two if statements with one statement, using the && operator, which will return `"Yes"` if `val` is less than or equal to `50` and greater than or equal to `25`. Otherwise, will return `"No"`. # --hints-- You should use the `&&` operator once ```js assert(code.match(/&&/g).length === 1); ``` You should only have one `if` statement ```js assert(code.match(/if/g).length === 1); ``` `testLogicalAnd(0)` should return "No" ```js assert(testLogicalAnd(0) === 'No'); ``` `testLogicalAnd(24)` should return "No" ```js assert(testLogicalAnd(24) === 'No'); ``` `testLogicalAnd(25)` should return "Yes" ```js assert(testLogicalAnd(25) === 'Yes'); ``` `testLogicalAnd(30)` should return "Yes" ```js assert(testLogicalAnd(30) === 'Yes'); ``` `testLogicalAnd(50)` should return "Yes" ```js assert(testLogicalAnd(50) === 'Yes'); ``` `testLogicalAnd(51)` should return "No" ```js assert(testLogicalAnd(51) === 'No'); ``` `testLogicalAnd(75)` should return "No" ```js assert(testLogicalAnd(75) === 'No'); ``` `testLogicalAnd(80)` should return "No" ```js assert(testLogicalAnd(80) === 'No'); ``` # --seed-- ## --seed-contents-- ```js function testLogicalAnd(val) { // Only change code below this line if (val) { if (val) { return "Yes"; } } // Only change code above this line return "No"; } testLogicalAnd(10); ``` # --solutions-- ```js function testLogicalAnd(val) { if (val >= 25 && val <= 50) { return "Yes"; } return "No"; } ```