30秒学会 JavaScript 片段 – prettyBytes
Converts a number in bytes to a human-readable string. Use an array dictionary of units to be access...
Converts a number in bytes to a human-readable string. Use an array dictionary of units to be access...
Changes the appearance of a form if any of its children are focused. The psuedo class :focus-within ...
Renders a ticker component. Use the React.useState() hook to initialize the ticker state variable to...
Chains asynchronous functions. Loop through an array of functions containing asynchronous events, ca...
Returns the head of a list. Use lst[0] to return the first element of the passed list.
Invokes the provided callback on each animation frame. Use recursion. Provided that running is true,...
Returns a list of elements that exist in both lists, after applying the provided function to each li...
Renders a table with rows dynamically created from an array of primitives. Render a <table> el...
Takes any number of iterable objects or objects with a length property and returns the longest one. ...
Returns the last element in a list. Check if lst has a non-zero length, use lst[lst.length – 1] if p...