How do I know if innerHTML contains something?

How do I know if innerHTML contains something?

To check if an element contains specific text:

1. Use the textContent property on the element to get the text content of the element and its descendants.
2. Use the includes() method to check if the specific text is contained in the element.
3. If it is, the includes() method returns true , otherwise false is returned.

Can innerHTML contain HTML tags?

The innerHTML property is valid for both block and inline elements. By definition, elements that do not have both an opening and closing tag cannot have an innerHTML property. The innerHTML property takes a string that specifies a valid combination of text and elements.

How can I tell if innerHTML is empty?

To check if a div element is empty with JavaScript, we can check if the innerHTML property of the div is empty. to add an empty div. to select the div with querySelector . Then we check if its innerHTML property is an empty string.

What is the disadvantage of using innerHTML in JavaScript?

There is no append support without reparsing the whole innerHTML. This makes changing innerHTML directly very slow. innerHTML does not provide validation and therefore we can potentially insert valid and broken HTML in the document and break it.

How do I check if an HTML element is empty using JavaScript?

Use the childNodes property to check if a div element is empty. The childNodes property returns a NodeList of the element’s child nodes, including elements, text nodes and comments. If the property returns a value of 0 , then the div is empty.

How do I get text from innerHTML?

To get the HTML markup contained within an element, you use the following syntax:

1. let content = element.innerHTML;
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3. let menu = document.getElementById(‘menu’); console.log(menu.innerHTML);
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What is difference between innerHTML and value?

innerHTML property refers to the literal HTML markup that is, once assigned, interpreted and incorporated into the DOM (Document Object Model) for the current document. On the other hand, the . value property simply refers to the content of typically an HTML input control, such as a textbox.

How do I check if a div has content?

To check if a div element contains specific text:

1. Use the textContent property on the element to get the text content of the element and its descendants.
2. Use the includes() method to check if the specific text is contained in the div .
3. If it is, the includes() method returns true , otherwise false is returned.