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at(): the last element without index calculus
The negative index counts from the end of the array.
Published22 Oct 2026
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Technology
Software, devices and technical concepts, explained clearly.
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Technology
AVIF: image format with more than one quality setting
AVIF uses AV1 technologies for still and animated images. Size, transparency, colors, and compatibility should be evaluated on the specific file.
Published22 Oct 2026
Technology
BigInt: large integers without decimal
The type has its own rules for arithmetic and data exchange.
Published22 Oct 2026
Technology
border-radius: 50% does not always create a circle
The shape also depends on the ratio between width and height.
Published22 Oct 2026
Technology
box-shadow: shadows do not take up layout space
The shadow is drawn around the box without distancing the adjacent elements.
Published22 Oct 2026
Technology
Browser cookies: sessions, expiry and security attributes
HTTP cookies allow the site to link individual requests. The Secure, HttpOnly and SameSite attributes manage various aspects of sending and accessing them.
Published22 Oct 2026
Technology
calc(): when width is a percentage minus spacing
calc allows calculation in CSS without pre-converting everything to pixels.
Published22 Oct 2026
Technology
caret-color coloring text cursor
The vertical feature when writing is different from the color of the text and selection.
Published22 Oct 2026
Technology
clamp(): smooth size with lower and upper bounds
The function selects a preferred value limited to a minimum and a maximum.
Published22 Oct 2026
Technology
codePointAt(): the code point is not a visible character
The index remains a position in the UTF-16 representation of the string.
Published22 Oct 2026
Technology
color-scheme: browser interface theme
The property informs the browser which color schemes the page supports.
Published22 Oct 2026
Technology
concat(): pooled list without changing sources
Deep nested arrays do not unfold automatically.
Published22 Oct 2026