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Re-use, rather than re-creating, some Arrays when resetting them in src/display/api.js

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Calling `someArray = []` will create a new Array, which seems completely unnecessary when it's sufficient to just call `someArray.length = 0` to achieve the same effect.

Even though I cannot imagine these particular cases having any noticeable performance impact, similar changes were made in `core/` code years ago since it's apparently more efficient memory wise.
This commit is contained in:
Jonas Jenwald 2019-05-30 16:25:48 +02:00
parent d0892e46e2
commit 8857a81c8d
1 changed files with 3 additions and 3 deletions
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6
src/display/api.js
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@ -1377,7 +1377,7 @@ class LoopbackPort {
}
terminate() {
this._listeners = [];
this._listeners.length = 0;
}
}
@ -1760,8 +1760,8 @@ class WorkerTransport {
waitOn.push(page._destroy());
}
});
this.pageCache = [];
this.pagePromises = [];
this.pageCache.length = 0;
this.pagePromises.length = 0;
// We also need to wait for the worker to finish its long running tasks.
const terminated = this.messageHandler.sendWithPromise('Terminate', null);
waitOn.push(terminated);