How can I find out what the element is that a <script>
sits in?
As an example, let's take this
<div>
<script type="text/javascript">
var time = new Date(), hrs = time.getHours(), min = time.getMinutes();
document.write('It is '+hrs+":"+(min<10?'0':'')+min);
</script>
</div>
Then if I want to change this to something more modern, how can I find out what element we're in?
So I want to write, for instance in jQuery
$(thisdiv).html('It is '+hrs+":"+(min<10?'0':'')+min);
but how do I get thisdiv
?
Yes, I know, I can put an ID on it, but I have the feeling that wouldn't be necessary. The browser knows where we are, otherwise it couldn't even do the document.write!
So, suggestions? I searched, but couldn't find it. Is it so simple that I'm overlooking the obvious?
Duplicate elements can be found using two loops. The outer loop will iterate through the array from 0 to length of the array. The outer loop will select an element. The inner loop will be used to compare the selected element with the rest of the elements of the array.
To check if an array contains duplicates: Use the Array. some() method to iterate over the array. Check if the index of the first occurrence of the current value is NOT equal to the index of its last occurrence. If the condition is met, then the array contains duplicates.
Script are executed in the order of appearance in the document. The contents of a script tag are evaluated on encounter, so, the last <script>
element is always the current one.
Code:
<div>
<script>
var scriptTag = document.getElementsByTagName('script');
scriptTag = scriptTag[scriptTag.length - 1];
var parent = scriptTag.parentNode;
</script>
</div>
Firefox:
document.currentScript.parentElement
Chrome:
document.scripts.length
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