I have to create my own higher order filter() function to filter an array of 10 words that only returns word that have 6 or more letters but my function is only returning true and false and not omitting words that are not 6 or more letters instead of actually returning the words in a new array. Do add additional code to execute the function?
Also I am not allowed to use the built-in filter function.
const wordArray = ["mine", "script", "function", "array", "javascript", "python", "coding", "html", "css", "bye"];
//myFilterFunction(HOF) takes an array (arr) and hypothetical function (fn) as arguments//
let myFilterFunction = (arr) => (fn) => {
const newArray = [];
for (let i = 0; i < arr.length; i++) {
newArray.push(fn(arr[i]));
}
return newArray; //return a array
};
//myFilterFunction is used with an anonymous function to return whether each word is 6 or more letters//
const printArray = myFilterFunction(wordArray)((word) => word.length >= 6);
//Output the result to the console//
console.log("this array only contains words that are 6 letters or more: " + printArray);
You are pushing the boolean expression result of the condition instead use that as a condition to push the desired word like so
const wordArray = ["mine", "script", "function", "array", "javascript", "python", "coding", "html", "css", "bye"];
//myFilterFunction(HOF) takes an array (arr) and hypothetical function (fn) as arguments//
let myFilterFunction = (arr) => (fn) => {
const newArray = [];
for (let i = 0; i < arr.length; i++) {
if (fn(arr[i])) {
newArray.push(arr[i]);
}
}
return newArray; //return a array
};
//myFilterFunction is used with an anonymous function to return whether each word is 6 or more letters//
const printArray = myFilterFunction(wordArray)((word) => word.length >= 6);
//Output the result to the console//
console.log("this array only contains words that are 6 letters or more: " + printArray);