Load all documents at once. Not progressively

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When I run a .fetch() command, it first returns null, then say suppose I have 100 documents and it will keep on loading from 1 to 100 and the counter keeps updating from 1 to 100 progressively. I don't want that to happen. I want all the results to be displayed at once after the fetch process has been completed.

Also, how can I display a relevant message to the user if no documents exist? The fetch method doesn't work for me since it returns 0 at first and hence "No document found" flashes for a second.

dbName.find({userID:"234234"}).fetch()

Even though the above has 100 docs, it first shows null and then keep loading the documents one by one. I want it load all at once or just return something if no docs exist.

How to Load Large Datasets From Directories for Deep Learning in , In addition, the generator will progressively load the images in your have subdirectories, one for each class where the actual image files will be placed. do not matter as we will load all images with given file extensions. If you want to rename all the files in the folder, press Ctrl+A to highlight them all, if not, then press and hold Ctrl and click on each file you want to highlight. Once all the files are highlighted, right click on the first file and from the context menu, click on “Rename” (you can also press F2 to rename the file).

Your question is actually about the subscription and it's state of readiness. While it is not yet ready, you can show a loading page, and once it is you can run the .fetch() to get the whole array. This logic could be put in your withTracker call, e.g.:

export default withTracker((props) => {
  const sub = Meteor.subscribe('users');
  return {
    ready: sub.ready(),
    users: sub.ready() && Users.find({userID: props.userID}).fetch()
  };
})(UserComponent);

Then, in your component, you can decide whether to render a spinner (while ready == false), or the users.

7 Ways to Handle Large Data Files for Machine Learning, How do I load my multiple gigabyte data file? There are many command line tools that you can use to transform one data format into another that do not progressively loading image files and is called flow_from_directory. Here’s how to do it : Identify your above the fold content ,i.e , the content that is visible without scrolling . Only that content should be loaded first. Fetch the rest using automatic ajax call upon page load event. If your content contains images (which are large in size and time consuming to load).

Your question is not entirely clear to me in terms of tools etc (please state which database connector lib are you using), but firstly, given you're doing a database access, most likely, your ".fetch()" call is not a sync function but async, and also most likely, handled by a promise.

Secondly, given that you're using react, you want to set a new state only after you get all the results back.

If fetch is a promise then just do:

dbName.find({userID:"234234"}).fetch().then(results =>
  setState({elements:results.data}) // do your processing accordingly
}

By only calling setState inside the promise, you'll always have all the results fetched at that instant and only with that do you update your component state with the setState function - either using your react component class this.setState or with hooks like useState (much cleaner).

Hybrid Lazy Loading: A Progressive Migration To Native Lazy , In case your website's images are downloaded all at once at page Unfortunately, native lazy loading is not a feature we can polyfill with JavaScript. of your choice // Here including vanilla-lazyload var script = document. Load documents in the ADF paper chute (cover) of the ScanSnap. Load the documents face-down and top-first with their back facing you. Adjust the number of documents so that they do not go beyond within the side guides when they are loaded.

Progressively Load Content on Scroll using jQuery, For example, you might have a lot of CSS and JavaScript files, which means So then, instead of loading all of the page content at once, you can instead The sections of your page below this position need not be loaded. In the Open dialog box, select multiple documents to open. Press and hold the Ctrl key as you click to select documents. Click the Open button, and all the documents open, each in its own window. From any folder window, select multiple Word document icons. Lasso them with the mouse, or Ctrl+click to select multiple documents.

Progressively Loading Images In React, The image loading does not begin until the image enters the viewport; Then a If all 20 images were loaded at once, the post would be slow to load. element or with a top-level document's viewport — developer.mozilla.org. When you receive an email message that contains several attachments, save all the files to the same folder on your computer. To save several email attachments with one step in Outlook: Open the message in Outlook either in a separate window or in the Outlook reading pane.

The files only download on-demand… but what if you want to make them download all at once? You can right-click on any file or folder inside of your OneDrive and choose whether to make it available offline, or to make it online-only, which will remove your local copy but keep it up there in the cloud.

Comments
  • The mongodb tag is removed from your question because the behavior you are talking about is specific to the Meteor API only and nothing to do with MongoDB itself. Please don't add it again.
  • It is important in this question to note the meteor tag. That answers some of the questions you had and also indicate that this answer is off target. In meteor .fetch() does not return a promise but an array.