What APIs are there for dom and bom?

dom’s api includes “document.getElementById()”, “document.querySelector()”, “element.getAttribute()”, “element.innerHTML”, etc.; bom’s api includes “window.location” , "window.open()", "window.close()" and "window.alert()" etc.

# Operating system for this tutorial: Window10 system, Dell G3 computer.

DOM (Document Object Model) and BOM (Browser Object Model) are two important concepts in Web development. They provide a series of APIs for operating web content and browsers.

DOM API (Document Object Model API) is used to operate and manage document structure. It provides methods to access and operate elements and their attributes in HTML or XML documents. Common DOM APIs include:

1. document.getElementById(): Get a specific element in the DOM through the element's id attribute.
2. document.querySelector() and document.querySelectorAll(): Select elements in the DOM based on selector matching rules.
3. element.getAttribute() and element.setAttribute(): Get and set the attribute value of the element.
4. element.innerHTML: Get or set the HTML content of the element.
5. element.appendChild() and element.removeChild(): Add or remove child elements.
6. element.addEventListener(): Add event listener.
7. element.style: Get or set the CSS style of the element.

BOM API (Browser Object Model API) is used to operate and manage the behavior of browser windows and pages. Common BOM APIs include:

1. window.location: Get or set the URL information of the current document.
2. window.open(): Open a new window.
3. window.close(): Close the current window.
4. window.alert() and window.confirm(): Pop up warning boxes and confirmation boxes.
5. window.setTimeout() and window.setInterval(): Set timer and interval execution functions.
6. navigator.userAgent: Get the browser’s user agent string.
7. history.back() and history.forward(): Forward and backward operations of browser history.

It should be noted that the specific implementation of DOM and BOM API may vary depending on the browser. Developers should choose and use the corresponding API based on the support of the target browser. .

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