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How to get page elements using javascript
Obtaining methods include: 1. Obtaining elements through ID; 2. Obtaining elements through class names; 3. Obtaining elements through tag names; 4. Obtaining elements through CSS selectors; 5. Obtaining elements through child elements or parent elements. If you want to know more about JavaScript, you can read the articles below this topic.
How to get local username in javascriptJavaScript is a scripting language that is commonly used in web development. It can be used to obtain local user names to facilitate users to log in and verify on the website. Below, we will introduce several JavaScript methods to obtain local user names. 1. Use the navigator object. You can obtain browser information through the navigator object in JavaScript, including the user's operating system information and browser information. So we can use it to get the local username. The code is as follows:```var u
There are several ways to get html page value in javascriptThere are three ways to obtain the HTML page value in JavaScript: 1. Use the "html element object.innerHTML" statement to return the content of the element; 2. Use the "html element object.innerText" statement; 3. Use "input element object.value" statement to return the content in the input box.
Is there any way to get the length of an array in javascript?In JavaScript, you can use the length attribute of the array object to get the length of the array. This attribute can set or return the number of elements in the array. You only need to use the "array.length" statement to return a value representing the number of elements of the array object. That is the length value.
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