Can you select multiple elements with querySelector?
To select multiple elements on a HTML page you need the document. querySelectorAll()! Put your selector in and you will get all the elements.
How do I select multiple IDs in querySelector?
Use the querySelectorAll() method to select elements by multiple ids, e.g. document. querySelectorAll(‘#box1, #box2, #box3’) . The method takes a string containing one or more selectors as a parameter and returns a collection of the matching elements.
Can class selector have multiple classes?
We aren’t limited to only two here, we can combine as many classes and IDs into a single selector as we want.
What is the difference between querySelector and querySelectorAll?
Differences: As seen above, querySelector() methodcan only be used to access a single element while querySelectorAll() method can be used to access all elements which match with a specified CSS selector. To return all matches, querySelectorAll has to be used, while to return a single match, querySelector is used.
Should I use querySelector or getElementById?
You should opt to use the querySelector method if you need to select elements using more complex rules that are easily represented using a CSS selector. If you want to select an element by its ID, using getElementById is a good choice.
What is the difference between querySelector and getElementById?
The querySelector() method returns the first element that matches the specified css selectors. The getElementById() method returns the first element that matches the given id in the DOM.
How do I get multiple ID in getElementById?
You could use document. querySelectorAll() that allows you to specify multiple ids in a CSS selector string . You could put a common class names on all those nodes and use document. getElementsByClassName() with a single class name.
How do you add multiple classes?
To specify multiple classes, separate the class names with a space, e.g. . This allows you to combine several CSS classes for one HTML element.
How do you group multiple selectors?
The CSS Grouping Selector The grouping selector selects all the HTML elements with the same style definitions. It will be better to group the selectors, to minimize the code. To group selectors, separate each selector with a comma.
Is querySelector faster?
querySelectorAll is much faster than getElementsByTagName and getElementsByClassName when accessing a member of the collection because of the differences in how live and non-live collections are stored.
What can I use instead of document querySelector?
The querySelector() method returns the first element that matches a CSS selector. To return all matches (not only the first), use the querySelectorAll() instead.
Which is faster getElementById or querySelector?
Conclusion: querySelector is usually slightly faster than getElementById when grabbing id’s.
How do I use multiple selectors in a CSS query?
The document.querySelector (), document.querySelectorAll ( ), Element.closest (), and Element.matches () methods all accept CSS selectors are their argument. One thing people often don’t realize is that you can pass in any valid CSS selector. That includes comma-separated selectors for targeting multiple different selectors.
Why does queryselector () return the first element in a list?
That’s precisely the intended behavior of .querySelector () — it finds all the elements in the document that match your query, and then returns the first one. That’s not “the first one you listed”, it’s “the first one in the document”.
What is the issue with queryselectorall?
Second issue is that querySelectorAll returns a collection of elements, not a single element, and you can’t set a style on a collection (you’re effectively trying to apply a style to an array). You would want to use forEach, like
Why does queryselectorall have a comma in it?
Because it’s any CSS-type selector, you use commas to seperate: “firstSelector, secondSelector” (note it’s a single string, not multiple arguments) Second issue is that querySelectorAll returns a collection of elements, not a single element, and you can’t set a style on a collection (you’re effectively trying to apply a style to an array).