Expose browser-compatible nextTick for dependents (#363)

README.md

@@ -306,7 +306,9 @@ Support of other key and value types depends on the implementation as well as it
 
 ## Private API For Implementors
 
-Each of these methods will receive exactly the number and order of arguments described. Optional arguments will receive sensible defaults. All callbacks are error-first and must be asynchronous. If an operation within your implementation is synchronous, be sure to invoke the callback on a next tick using `process.nextTick(callback, ..)`, `setImmediate` or some other means of micro- or macrotask scheduling.
+Each of these methods will receive exactly the number and order of arguments described. Optional arguments will receive sensible defaults. All callbacks are error-first and must be asynchronous.
+
+If an operation within your implementation is synchronous, be sure to invoke the callback on a next tick using `process.nextTick` or some other means of microtask scheduling. For convenience, the prototypes of `AbstractLevelDOWN`, `AbstractIterator` and `AbstractChainedBatch` include a `_nextTick` method that is compatible with node and browsers.
 
 ### `db = AbstractLevelDOWN([manifest])`
 

abstract-chained-batch.js

@@ -1,3 +1,5 @@
+var nextTick = require('./next-tick')
+
 function AbstractChainedBatch (db) {
   if (typeof db !== 'object' || db === null) {
     throw new TypeError('First argument must be an abstract-leveldown compliant store')
@@ -78,4 +80,7 @@ AbstractChainedBatch.prototype._write = function (options, callback) {
   this.db._batch(this._operations, options, callback)
 }
 
+// Expose browser-compatible nextTick for dependents
+AbstractChainedBatch.prototype._nextTick = nextTick
+
 module.exports = AbstractChainedBatch

abstract-iterator.js

@@ -1,4 +1,5 @@
 var nextTick = require('./next-tick')
+
 function AbstractIterator (db) {
   if (typeof db !== 'object' || db === null) {
     throw new TypeError('First argument must be an abstract-leveldown compliant store')
@@ -70,4 +71,7 @@ AbstractIterator.prototype._end = function (callback) {
   nextTick(callback)
 }
 
+// Expose browser-compatible nextTick for dependents
+AbstractIterator.prototype._nextTick = nextTick
+
 module.exports = AbstractIterator

abstract-leveldown.js

@@ -314,4 +314,7 @@ AbstractLevelDOWN.prototype._checkValue = function (value) {
   }
 }
 
+// Expose browser-compatible nextTick for dependents
+AbstractLevelDOWN.prototype._nextTick = nextTick
+
 module.exports = AbstractLevelDOWN

package.json

@@ -5,7 +5,7 @@
   "license": "MIT",
   "main": "index.js",
   "browser": {
-    "./next-tick.js": "./next-tick.browser.js"
+    "./next-tick.js": "./next-tick-browser.js"
   },
   "scripts": {
     "test": "standard && hallmark && nyc node test/self.js",