intersperse

Places a separator between every value. 🏃 📼 📦 🌔 📒

Similar: interleave, intermix, interpolate, intersperse.

iterable.intersperse(x, v);
// x: an iterable
// v: separator

const iterable = require("extra-iterable");

var x = [1, 2, 3];
[...iterable.intersperse(x, 10)];
// [ 1, 10, 2, 10, 3 ]

var x = [1, 2, 3, 4];
[...iterable.intersperse(x, 10)];
// [ 1, 10, 2, 10, 3, 10, 4 ]

references

• Data.List.intersperse: Haskell
• Data.List.intercalate: Haskell