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sanjeshwari Nand
Full Stack JavaScript Techdegree Student 4,673 PointsWhy is it necessary to return true?
function saveSearchString(str) {
var searches = getRecentSearches();
if(!str || searches.indexOf(str) > -1) {
return false;
}
searches.push(str);
localStorage.setItem('recentSearches', JSON.stringify(searches));
return true;
}
Mod Edit: Fixed code formatting for readability. You can post fancy code like this using markdown.
1 Answer
Brandon White
Full Stack JavaScript Techdegree Graduate 35,771 PointsHi Sanjeshwari,
The reason you need to return true or false is because of the event listener added to the searchform variable. Within the callback function for that event listener, the saveSearchString function is invoked. But it’s invoked within an if statement. If the saveSearchString function returns false, then the code within the corresponding if block won’t run, but if the saveSearchString function returns true, the code within the corresponding if block will run.
sanjeshwari Nand
Full Stack JavaScript Techdegree Student 4,673 Pointssanjeshwari Nand
Full Stack JavaScript Techdegree Student 4,673 Pointsthank you!