check if all values in array are true javascript

Today, We want to share with you check if all values in array are true javascript.In this post we will show you check if all values in array are equal javascript, hear for How to check if array includes a value in JavaScript? we will give you demo and example for implement.In this post, we will learn about How to Check If an Element Exists in ReactJS? with an example.

Check if all values in array are true, then return a true

JavaScript Array every() Method

Example 1:

<!DOCTYPE html>
<html>
<body>

<p>Click the button to check if every products price in the array has a value of 18 or more.</p>

<button onclick="getLowPrice()">ClickIt</button>

<p id="example"></p>

<script>
var ages = [59, 36, 12, 45];

function testAllProduct(price) {
  return price >= 18;
}

function getLowPrice() {
  document.getElementById("example").innerHTML = ages.every(testAllProduct);
}
</script>

</body>
</html>

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Check if all values in array are true, then return a true boolean statement (javascript)
Example 2:

let students_list = [false, true, true],
    students_b1_list = [true, true, true];

let checker = arr => arr.every(v => v === true);

console.log(checker(students_list));
console.log(checker(students_b1_list));

Checking array elements using the for loop

Example 3:

let levels = [1, 3, 5];

let levels = [1, 3, 5];
let output = true;
for (let i = 0; i < levels.length; i++) {
    if (levels[i] <= 0) {
        output = false;
        break;
    }
}
console.log(output);

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