30秒学会 JavaScript 片段 – takeWhile
Removes elements in an array until the passed function returns true. Returns the removed elements. L...
Removes elements in an array until the passed function returns true. Returns the removed elements. L...
Returns the length of a string in bytes. Convert a given string to a Blob Object and find its size.
Picks the key-value pairs corresponding to the given keys from an object. Use Array.prototype.reduce...
Removes elements from the end of an array until the passed function returns true. Returns the remove...
Returns an array of function property names from own (and optionally inherited) enumerable propertie...
Creates an object composed of the properties the given function returns falsy for. The function is i...
Returns true if the user color scheme preference is light, false otherwise. Use window.matchMedia() ...
Returns all the elements of an array except the last one. Use arr.slice(0,-1) to return all but the ...
Returns a random element from an array, using the provided weights as the probabilities for each ele...
Creates a new object from the combination of two or more objects. Use Array.prototype.reduce() combi...