Initial commit

.eslintrc

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+{
+	"extends": "@joepie91/eslint-config"
+}

.gitignore

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+node_modules

example.js

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+"use strict";
+
+const Promise = require("bluebird");
+const pipe = require("@ppstreams/pipe");
+const collect = require("@ppstreams/collect");
+const fromIterable = require("@ppstreams/from-iterable");
+const join = require("./");
+
+Promise.try(() => {
+	return pipe([
+		fromIterable([ 1, 2, 3, 4, 5 ]),
+		join(0),
+		collect()
+	]).read();
+}).then((values) => {
+	console.log(values); // [ 1, 0, 2, 0, 3, 0, 4, 0, 5 ]
+});

index.js

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+"use strict";
+
+const pipe = require("@ppstreams/pipe");
+const map = require("@ppstreams/map");
+const buffer = require("@ppstreams/buffer");
+
+module.exports = function join(joinValue) {
+	let firstValueProcessed = false;
+
+	return pipe([
+		map((value) => {
+			if (firstValueProcessed === false) {
+				firstValueProcessed = true;
+				return [ value ];
+			} else {
+				return [ joinValue, value ];
+			}
+		}),
+		buffer()
+	]);
+};

package.json

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+{
+  "name": "@ppstreams/join",
+  "version": "0.1.0",
+  "main": "index.js",
+  "keywords": [
+    "ppstreams"
+  ],
+  "repository": "http://git.cryto.net/joepie91/join.git",
+  "author": "Sven Slootweg <admin@cryto.net>",
+  "license": "WTFPL OR CC0-1.0",
+  "devDependencies": {
+    "@joepie91/eslint-config": "^1.1.0",
+    "@ppstreams/collect": "^0.1.0",
+    "bluebird": "^3.7.2",
+    "eslint": "^6.8.0"
+  },
+  "dependencies": {
+    "@ppstreams/pipe": "^0.1.1"
+  }
+}