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- Tags: JS DOM, JS DOM Element
- Categories: JavaScript Properties, JavaScript Reference, Reference
Last Updated on November 15, 2022
Quick Reference
The Element style property sets or returns the values of an element’s style attribute.
Get the Value
// variable
let my_value = document.getElementById('my_output').style.borderTopColor;
// output to the HTML element
document.getElementById('my_output').innerHTML = my_value;
Set the Value
document.getElementById('my_output').style.borderTopColor = 'red';
Note
When referring to element element's style attribute using JavaScript, the hyphen is not used, and words following the first word have their first letter capitalized. The following shows the CSS value and it's JavaScript counterpart.
border-top = borderTop border-color = borderColor border-top-color = borderTopColor
Output
red
Syntax
Get the Value
element.style.property
Set the Value
element.style.property = value
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JAVASCRIPT NOTES:
- When using JavaScript, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- JavaScript is a case-sensitive language; firstName is NOT the same as firstname
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
- JavaScript variables must begin with a letter, $, or _
- JavaScript variables are case sensitive (x is not the same as X)
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