On a webpage, there are various div elements, with some having the class 'class1'.
Inquiry: Do both of the selectors below retrieve all div elements with the class of class1?
$("div .class1")
$("div.class1")
On a webpage, there are various div elements, with some having the class 'class1'.
Inquiry: Do both of the selectors below retrieve all div elements with the class of class1?
$("div .class1")
$("div.class1")
The initial query will target an element with the class class1 that is nested inside a div.
<div>
<p class="class1">text</p> <-- selected
</div>
The subsequent query will select a div specifically labeled with class1.
<div class="class1"> <-- selected
<p>text</p>
</div>
Will both of the following selectors return all div elements that have the class of class1?
No, only the second selector, $("div.class1"), will work correctly. In jQuery and CSS syntax, a space before a class name indicates a descendant element with that particular class.
These two selectors have distinct functionalities.
When using this selector:
$("div .class1")
it will target any element with the class class1 that is a descendant of a div, regardless of the type of element or the class of the div.
On the other hand, when using this selector:
$("div.class1")
it will specifically target any div element that has the class class1.
The initial selector retrieves all instances of the .class1 class within any <div> element.
The second selector specifically targets .class1 elements that are directly <div> elements.
Incorrect.
The initial query will retrieve all elements within the div tag that have the class attribute set to class1. Whereas, the subsequent query will solely select the div element with the class attribute 'class1`.
The main distinction between the two selectors provided is based on the element hierarchy.
For instance, consider the following code:
<div class="class1">
This is a div with class name class1
</div>
<div>
This is a div with no class name</div>
<span class="class1">This is a span with class name class1</span>
<div class="class1">
This is a div with class name class1
</div>
<div>
This is a div with no class name
<p class="class1">This is a paragraph with class name class1</p>
</div>
<div class="class1">
This is a div with class name class1
</div>
<div class="class1">
This is a div with class name class1
<div class="class1">
This is a div with class name class1
</div>
</div>
The selector $("div .class1") will select all elements inside a <div> element with the class name class1. In our example, this would be
<span class="class1">...</span><p class="class1">...</p><div class="class1">...</div>On the other hand, the selector $("div.class1") will target all <div> elements that have the class name class1. In our example, this includes every instance of <div class="class1">.
For further clarification, check out this fiddle: http://jsfiddle.net/fatgamer85/m99onozo/1/
I hope this explanation helps you understand better.
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