diff --git a/lib/events.js b/lib/events.js index 1356806f6544c3..c12a1bfa73d2e4 100644 --- a/lib/events.js +++ b/lib/events.js @@ -24,7 +24,7 @@ const { Math, Object, Reflect } = primordials; const apply = Reflect.apply; -var spliceOne; +let spliceOne; const { kEnhanceStackBeforeInspector, @@ -57,7 +57,7 @@ EventEmitter.prototype._maxListeners = undefined; // By default EventEmitters will print a warning if more than 10 listeners are // added to it. This is a useful default which helps finding memory leaks. -var defaultMaxListeners = 10; +let defaultMaxListeners = 10; function checkListener(listener) { if (typeof listener !== 'function') { @@ -114,7 +114,7 @@ EventEmitter.prototype.getMaxListeners = function getMaxListeners() { // Returns the length and line number of the first sequence of `a` that fully // appears in `b` with a length of at least 4. function identicalSequenceRange(a, b) { - for (var i = 0; i < a.length - 3; i++) { + for (let i = 0; i < a.length - 3; i++) { // Find the first entry of b that matches the current entry of a. const pos = b.indexOf(a[i]); if (pos !== -1) { @@ -211,7 +211,7 @@ EventEmitter.prototype.emit = function emit(type, ...args) { } else { const len = handler.length; const listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) + for (let i = 0; i < len; ++i) apply(listeners[i], this, args); } @@ -219,9 +219,9 @@ EventEmitter.prototype.emit = function emit(type, ...args) { }; function _addListener(target, type, listener, prepend) { - var m; - var events; - var existing; + let m; + let events; + let existing; checkListener(listener); @@ -350,7 +350,7 @@ EventEmitter.prototype.removeListener = } else if (typeof list !== 'function') { let position = -1; - for (var i = list.length - 1; i >= 0; i--) { + for (let i = list.length - 1; i >= 0; i--) { if (list[i] === listener || list[i].listener === listener) { originalListener = list[i].listener; position = i; @@ -419,7 +419,7 @@ EventEmitter.prototype.removeAllListeners = this.removeListener(type, listeners); } else if (listeners !== undefined) { // LIFO order - for (var i = listeners.length - 1; i >= 0; i--) { + for (let i = listeners.length - 1; i >= 0; i--) { this.removeListener(type, listeners[i]); } } @@ -483,14 +483,14 @@ EventEmitter.prototype.eventNames = function eventNames() { function arrayClone(arr, n) { const copy = new Array(n); - for (var i = 0; i < n; ++i) + for (let i = 0; i < n; ++i) copy[i] = arr[i]; return copy; } function unwrapListeners(arr) { const ret = new Array(arr.length); - for (var i = 0; i < ret.length; ++i) { + for (let i = 0; i < ret.length; ++i) { ret[i] = arr[i].listener || arr[i]; } return ret;