html css javascript php mysql interview questions
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sure! here is an informative tutorial on common html, css, javascript, php, and mysql interview questions:
html interview questions:
1. *what is the purpose of html?*
html (hypertext markup language) is used to create the structure of web pages by defining the content and layout of elements.
2. *what is the difference between `div` and `span` in html?*
`div` is a block-level element used for grouping and dividing content, while `span` is an inline element used for styling specific parts of text within a block-level element.
css interview questions:
1. *what is the box model in css?*
the box model in css describes the design and layout of elements on a web page. it consists of content, padding, border, and margin.
2. *what is the difference between `margin` and `padding` in css?*
`margin` is the space outside the border of an element, while `padding` is the space between the content and the border of an element.
javascript interview questions:
1. *what is the difference between `null` and `undefined` in javascript?*
`null` represents the intentional absence of any value, while `undefined` is used for variables that have been declared but not assigned a value.
2. *explain the concept of event bubbling in javascript?*
event bubbling is the process where an event triggered on a child element will bubble up through its parent elements in the dom tree.
php interview questions:
1. *what is php and its use in web development?*
php (hypertext preprocessor) is a server-side scripting language used for creating dynamic web pages and applications.
2. *what is the difference between `include` and `require` in php?*
both `include` and `require` are used to include external php files, but `require` will cause a fatal error if the file is not found, while `include` will only produce a warning.
mysql interview questions:
1. *what is mysql and its role in web development?*
mysql is an ...
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