Is there a more efficient method for incrementing a DOM value that you know of?
let progress = +document.getElementById("progress").innerHTML;
progress++;
document.getElementById("progress").innerHTML = progress;
Perhaps something like this could work instead:
document.getElementById("progress").innerHTML++;Is there a more graceful way to accomplish this task?
document.getElementById("progress").innerHTML++
Let me clarify:
++ is considered as a unary operator, requiring only one variable (a number).innerHTML represents a string or text value.++ to a string, it will attempt to convert the string into a number. This may result in the correct number if the string contains numerical values, or it may lead to NaN (not-a-number) otherwise.Therefore, we can resort to a clever "hack" like this:
(document.getElementById("progress").innerHTML)++; // option 1
++(document.getElementById("progress").innerHTML); // option 2
This method works effectively if the progress element contains a numerical value. For instance:
function increase() {
(document.getElementById('progress').innerHTML)++;
}<div id="progress">0</div>
<button onclick="increase()">Click me</button>While this technique could be viewed as a workaround, I suggest avoiding it whenever possible. Nevertheless, it does provide a solution to your query.
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