04-04-2023, 08:10 AM
(This post was last modified: 04-04-2023, 08:12 AM by Qomplainerz.)
The HTML part between the <body></body> tags looks like this:
The JavaScript part looks like this:
Code:
<h2>Example 1</h2>
<p id="demo"></p>
<h2>Example 2</h2>
<p>Click "Test" to return the index of the first array element that has a value above this number:</p>
<p><input type="number" id="toCheck" value="18"></p>
<button onclick="myFunction()">Test</button>
<p id="demo2"></p>The JavaScript part looks like this:
Code:
// Example 1
const ages = [3, 10, 18, 20];
function checkAge(age)
{
return age > 18;
}
document.getElementById("demo").innerHTML = ages.findIndex(checkAge);
// Example 2
const numbers = [4, 12, 16, 20];
function checkValue(x)
{
return x > document.getElementById("toCheck").value;
}
function myFunction()
{
document.getElementById("demo2").innerHTML = numbers.findIndex(checkValue);
}
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