When working with JQuery and trying to access elements, I have noticed that the method for retrieving content differs depending on the element type. For example, if I have a form with a textarea and want to get the text inside of it, I would use $("textarea").val();
However, if I am working with an h1 element, the syntax changes to $("h")[0].innerHTML;
I find this inconsistency interesting - why do methods like h1.val() or textarea.innerHTML not work in these scenarios?
.val() is a jQuery method used for retrieving or replacing input element values, whereas in JavaScript, you can use .value.
To retrieve or replace the entire markup inside an element (excluding input elements), you can use innerHTML in vanilla JS or .html() in jQuery.
.text() functions similarly to innerHTML in JavaScript, but it specifically retrieves or replaces only the text content inside an element without the HTML tags. It is essentially equivalent to innerText in JS.
For more information, check out these reference links on innerHTML, innerText, val(), text(), and html().
textarea.innerHTML can be used to retrieve the initial HTML content of a textarea, while val() will capture the current value entered by the user. Keep in mind that val() only works with form elements and would not provide any result for an <h1>.
$('textarea').on('input', function() {
$('#innerhtml').text(this.innerHTML);
$('#val').text($(this).val());
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
Type in the textarea below to see results:
<br>
<textarea>test123</textarea>
<div>textarea innerHTML:</div>
<div id="innerhtml"></div>
<div>textarea val:</div>
<div id="val"></div>Html inputs are equipped with val() which allows them to send their values for processing within a form. These include textarea, text, and submit.
On the other hand, tags like h1 and span do not partake in form submissions and will not be processed. Additionally, they may contain inner tags and HTML content.
To access the text content of an h1 element, you can utilize either h1.text() or h1.html(), which correspond to innerText and innerHTML respectively.
For retrieving the value of an input element, you can use val(), which corresponds to input.value.
Although using jQuery equivalents offers cross-browser compatibility, this is likely more relevant in older browsers. Modern browsers likely implement these functions in the same way.
As a general guideline, use value for input elements and innerHTML for non-input fields.
In jQuery, the .val() method is utilized to extract values from input elements. In JavaScript, an alternative method for this purpose is .value.
The .innerHTML property is employed to insert content between specific tags. It serves as a DOM attribute that allows content to be inserted into a designated element ID. On the other hand, the .val() function extracts values exclusively from input tags.
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