A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
//higher order function is just a function that take other function as a parameter//example forEachfunctionrepeater(fn){fn();fn();fn();}functionsayHello(){console.log("Hello There!")}repeater(sayHello);//at console Hello There 3 times._//repeater is higher order function that take sayHello as function parameter.
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
//Syntactic Sugar for a ForEach loop below; this is part of a form validation//and basicly goes through every element in the form and logs the id for said//element. functioncheckRequired(inputArr){// | //? V High Order Array Method
inputArr.forEach(function(input){console.log(input.id)});}//! Event Listeners --> This is a higher order functon
form.addEventListener('submit',function(e){
e.preventDefault();//passing in array of arguments to be checkedcheckRequired([username, email, password, password2]);});
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
functionevenNumberFilter(number){return number %2==0}functionoddNumberFilter(number){return!evenNumberFilter(number)}functionfilter(predicate){const result =[]for(number=0; number<10; number++){if(predicate(number)){
result.push(number)}}return result
}filter(evenNumberFilter);//[0,2,4,6,8]filter(oddNumberFilter);//[1,3,5,7,9]
functionevenNumberFilter(number){return number %2==0}functionoddNumberFilter(number){return!evenNumberFilter(number)}functionevenNumberBeforeTen(){const result =[]for(number=0; number<10; number++){if(evenNumberFilter(number)){
result.push(number)}}return result
}functionoddNumberBeforeTen(){const result =[]for(number=0; number<10; number++){if(oddNumberFilter(number)){
result.push(number)}}return result
}evenNumberBeforeTen();//[0,2,4,6,8]oddNumberBeforeTen();//[1,3,5,7,9]
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()The....ArrayMethod.forEach()The....ArrayMethod.filter()The.filter() method executes a callback function on each element in an array....ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()
A “higher-order function” is a function that accepts functions as parameters and/or returns a function.ArrayMethod.reduce()ArrayMethod.forEach()ArrayMethod.filter()ArrayMethod.map()