图片转换base64 Packages

Group element entries according to an indicator function.

Group element indices as arrays associated with distinct keys.

Group element indices according to an indicator function.

Group elements as arrays associated with distinct keys.

Group element values according to an indicator function.

Apply a unary callback to elements in a two-dimensional nested input array according to elements in a two-dimensional nested mask array and assign results to elements in a two-dimensional nested output array.

Apply a unary callback to elements in a three-dimensional nested input array according to elements in a three-dimensional nested mask array and assign results to elements in a three-dimensional nested output array.

Apply a quaternary callback to elements in four two-dimensional nested input arrays and assign results to elements in a two-dimensional nested output array.

Apply a quaternary callback to elements in four three-dimensional nested input arrays and assign results to elements in a three-dimensional nested output array.

Return the first element of an array-like object.

Apply a unary function to each element retrieved from a two-dimensional nested input array according to a callback function and assign results to elements in a two-dimensional nested output array.

Apply a unary callback to elements in a three-dimensional nested input array and assign results to elements in a three-dimensional nested output array.

Apply a unary callback to elements in a four-dimensional nested input array and assign results to elements in a four-dimensional nested output array.

Apply a unary callback to elements in a five-dimensional nested input array and assign results to elements in a five-dimensional nested output array.

Apply a unary callback to elements in an n-dimensional nested input array and assign results to elements in an n-dimensional nested output array.

Return a new array with the element at the specified index replaced with a provided value.

Apply a ternary callback to elements in three two-dimensional nested input arrays and assign results to elements in a two-dimensional nested output array.

Apply a ternary callback to elements in three three-dimensional nested input arrays and assign results to elements in a three-dimensional nested output array.

Apply a ternary callback to elements in three four-dimensional nested input arrays and assign results to elements in a four-dimensional nested output array.

Apply a ternary callback to elements in three five-dimensional nested input arrays and assign results to elements in a five-dimensional nested output array.