Do something when a for loop ends

I have a for loop in JavaScript, and I wan开发者_如何转开发t some code to run when it ends. This works, but I'm wondering if there are any simpler solutions:

for (var i = 1; i <= 100; i++) {
    console.log('Line ' + i);

    if (i === 100) {
        alert('Loop ended!');
    }
}

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for (var i = 1; i <= 100; i++) {
    console.log('Line ' + i);
}

alert('Loop ended!');

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unless I'm missing something, what's wrong with:

for (var i = 1; i <= 100; i++) {
    console.log('Line ' + i);
}

alert('Loop ended!');

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why dont you do like this?

Array.from(Array(100), (_, i) => console.log('Line ' + (i + 1)));
alert('Loop ended!');

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Try this

for (var i = 1; i <= 100; i++) {
   console.log('Line ' + i);
}

alert('');