foreach jas
const array1 = ['a', 'b', 'c'];
array1.forEach(element => console.log(element));foreach jas
const array1 = ['a', 'b', 'c'];
array1.forEach(element => console.log(element));javascript every method
// array.every(function(elemnt)) method takes in a function
// which evaulates each elment
// The every method is designed to check if all the elements
// in an array meet a specific condition
// This condition is defined within your function
let numbers = [1, 2, 3, 42, 3, 2, 4, -1];
let allPassed = numbers.every(function(element){
return element > 0;
});
// This method returns a Boolean value
// allPassed is set to false because not all elements were greater than 0javascript every
const age= [2,7,12,17,21];
age.every(function(person){
return person>18;
}); //false
//es6
const age= [2,7,12,17,21];
age.every((person)=> person>18); //falsejs every
const exams = [80, 98, 92, 78, 77, 90, 89, 84, 81, 77]
exams.every(score => score >= 75) // Say true if all exam components are greater or equal than 75forEach
const arraySparse = [1,3,,7]
let numCallbackRuns = 0
arraySparse.forEach((element) => {
console.log(element)
numCallbackRuns++
})
console.log("numCallbackRuns: ", numCallbackRuns)
// 1
// 3
// 7
// numCallbackRuns: 3
// comment: as you can see the missing value between 3 and 7 didn't invoke callback function.every in javascript
let data = [ {status: true}, {status: false}, {status: true} ]
let result = data.every((i) => {
return i.status === true
})
console.log(result) // falseCopyright © 2021 Codeinu
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