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  • Question: Trying to insert an element using .textContent
  • Time: Updated 57 days ago
  • Modified: Asked 45 hours ago
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Trying to insert an element using .textContent

To insert an element using .textContent, you can follow these steps:

  1. First, select the element you want to insert the new text into using document.querySelector() or document.getElementById().

  2. Next, use the .textContent property to set the text content of the selected element. For example, if you want to insert the text “Hello, world!” into a paragraph element with an ID of “my-paragraph”, you can do it like this:

javascript
var myParagraph = document.getElementById("my-paragraph"); myParagraph.textContent = "Hello, world!";
  1. If you want to append new text to the existing text content of the element, you can concatenate the new text with the existing text using the + operator. For example, if you want to add “Welcome to my website!” to the existing text content of the “my-paragraph” element, you can do it like this:
javascript
var myParagraph = document.getElementById("my-paragraph"); myParagraph.textContent += "Welcome to my website!";

Note that .textContent only sets the text content of an element and does not support HTML tags or attributes. If you need to insert HTML content, you can use .innerHTML instead, but be careful as it may expose your site to cross-site scripting (XSS) attacks.

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textContent vs innerHTML in the JavaScript DOM

When to use textContent in JavaScript?

In JavaScript, the textContent property is used to get or set the text content of an HTML element, excluding any HTML tags that may be present. You should use the textContent property when you want to work specifically with the text content of an element, rather than its HTML content.

Here are some common scenarios where you might want to use textContent:

  1. When you want to retrieve or modify the text content of an HTML element, without including any HTML tags. For example, you might use textContent to get the text of a paragraph element, and then manipulate it before displaying it to the user.

  2. When you want to remove all the child elements of an HTML element, but retain its text content. You can do this by setting the textContent property of the parent element to an empty string.

  3. When you want to create a new text node and append it to an HTML element. You can do this by creating a new Text node using the document.createTextNode() method, and then appending it to the element using the appendChild() method.

It’s worth noting that the textContent property is not supported in older versions of Internet Explorer (IE8 and earlier), so you may need to use an alternative method such as innerText or innerHTML in those cases.

What does textContent mean in JS?

In JavaScript, the textContent property is used to get or set the text content of an HTML element.

When used to get the content, the textContent property returns the text content of an element, without including any HTML tags or attributes that may be present within the element. For example, if you have an HTML element like this:

html
<p>This is <strong>bold</strong> text.</p>

You can retrieve just the text content of the p element by accessing its textContent property:

javascript
const p = document.querySelector('p'); console.log(p.textContent); // outputs: "This is bold text."

When used to set the content, the textContent property replaces the existing text content of the element with the specified text. For example:

javascript
const p = document.querySelector('p'); p.textContent = 'This is new text.';

This will replace the original content of the p element with the text “This is new text.”

How to add text to an element using JavaScript?

To add text to an element using JavaScript, you can follow these steps:

  1. Use the document.getElementById() method to select the element you want to add text to. This method selects the element by its ID attribute, which must be unique within the HTML document.

  2. Use the textContent property of the selected element to set its text content to the desired value. For example, if you want to add the text “Hello, world!” to a paragraph element with an ID of “my-paragraph”, you can use the following code:

javascript
var paragraph = document.getElementById("my-paragraph"); paragraph.textContent = "Hello, world!";
  1. Alternatively, you can use the innerHTML property to set the HTML content of the element, including any text and markup you want to add. For example:
javascript
var paragraph = document.getElementById("my-paragraph"); paragraph.innerHTML = "<strong>Hello, world!</strong>";

Note that using innerHTML can potentially introduce security vulnerabilities if you’re not careful about the content you’re adding, as it allows arbitrary code to be injected into the page. So, you should always validate and sanitize any user-generated or untrusted content before adding it to the page.

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