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Tags #utils #browser #performance #array #async #dom #objects #pattern #events #format #concurrency #http #ui #advanced #fetch #url #string #functional #cache #files #crypto #promise #intl #observer
JavaScript Slugify String
Converts any string into a URL-safe slug: lowercases it, replaces accented characters with ASCII equivalents, strips all non-alphanumeric characters (except hyphens), and collapses multiple hyphens into one. Ideal for generating URL slugs from blog titles, product names, or user input.
#string #slug #url #utils
@admin 9h ago
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JavaScript Truncate String
Truncates a string to a maximum character length and appends an ellipsis (or custom suffix). The smart version breaks at the last word boundary to avoid cutting in the middle of a word, making truncated text look natural in card previews, notifications, and list views.
#string #truncate #utils
@admin 9h ago
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JavaScript Capitalize Words (Title Case)
Converts a string to title case by capitalising the first letter of each word. Handles multiple spaces and mixed-case input. Optionally skips common English stopwords (a, an, the, of, in, …) so article/preposition words are not capitalised in the middle of a title — matching standard editorial style guides.
#string #titlecase #utils
@admin 9h ago
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JavaScript Parse URL Query String
Parses a URL query string into a plain key-value object. Uses the built-in URLSearchParams API — no regex required. Handles duplicate keys (returns the first value), percent-encoded characters, and works with both full URLs and raw query strings. Pairs nicely with buildQueryString.
#url #query #utils
@admin 9h ago
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JavaScript Copy Text to Clipboard
Copies a string to the system clipboard. Uses the modern navigator.clipboard.writeText API (requires HTTPS or localhost) and falls back to the deprecated document.execCommand approach for older browsers or non-secure contexts. Returns a Promise so you can show success/error feedback.
#clipboard #browser #utils
@admin 9h ago
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JavaScript LocalStorage with Expiry
Extends localStorage with TTL (time-to-live) support. setItem stores a value alongside an expiry timestamp. getItem returns null and removes the key if the TTL has elapsed. Useful for caching API responses client-side, storing ephemeral UI state, and implementing remember-me tokens without a backend session.
#localstorage #cache #browser #utils
@admin 9h ago
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JavaScript UUID v4 Generator
Generates a RFC 4122 compliant version-4 UUID. Uses crypto.randomUUID() in modern environments (Node 14.17+, all modern browsers) and falls back to a Math.random()-based implementation for older runtimes. The fallback is suitable for non-security-critical IDs such as UI element keys and local correlation IDs.
#uuid #id #crypto #utils
@admin 9h ago
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JavaScript Random Hex Color
Generates a random 6-digit hex colour string. Useful for seeding avatar backgrounds, chart series colours, placeholder UI elements, and testing colour-dependent components. The crypto version produces a more unpredictable result suitable for generating unique palette tokens.
#color #random #utils
@admin 9h ago
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JavaScript Hex ↔ RGB Conversion
Converts between hex colour strings (#rrggbb / #rgb) and RGB component objects. hexToRgb parses both shorthand and full hex formats. rgbToHex converts R, G, B integers (0–255) back to a hex string. Handy for colour manipulation, generating CSS variables, and passing colour data between libraries.
#color #hex #rgb #utils
@admin 9h ago
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