Recursive table formulating function that waits for page to load before each step
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I am trying to find out how to have all of these things in the same function:
- An array of objects where sections of it are generated through a time-consuming function
- The DOM loading before each attempt at loading the next section of array objects
I have tried Promise, recursive functions to my best ability, to no prevail.
Here is the code I am manipulating:
showLoader();
var preArray = new Array();
var subjects = scrapeSubjects();
function next(subject, prearray) {
if (subject.length) {
//Writes an element specifying the current section being loaded for the user on a loading page
writeToLoader(subject[0]);
$( document ).ready( function() { next(subject); });
prearray = prearray.concat(pullData(subject.shift()));
}
};
preArray = next(subjects, preArray);
var array = stripNonRooms(preArray, roomsArray);
localStorage.setItem('data', JSON.stringify(array));
//hides the loader when it is complete
var loader = document.getElementById("loader");
loader.style.display = "none";
Is there anything I can do to show the user the section that is currently being loaded, while it is being loaded?
javascript jquery arrays async-await
asked Nov 25 '18 at 7:24
tincopper2tincopper2
449
|
show 2 more comments
0
I am trying to find out how to have all of these things in the same function:
- An array of objects where sections of it are generated through a time-consuming function
- The DOM loading before each attempt at loading the next section of array objects
I have tried Promise, recursive functions to my best ability, to no prevail.
Here is the code I am manipulating:
showLoader();
var preArray = new Array();
var subjects = scrapeSubjects();
function next(subject, prearray) {
if (subject.length) {
//Writes an element specifying the current section being loaded for the user on a loading page
writeToLoader(subject[0]);
$( document ).ready( function() { next(subject); });
prearray = prearray.concat(pullData(subject.shift()));
}
};
preArray = next(subjects, preArray);
var array = stripNonRooms(preArray, roomsArray);
localStorage.setItem('data', JSON.stringify(array));
//hides the loader when it is complete
var loader = document.getElementById("loader");
loader.style.display = "none";
Is there anything I can do to show the user the section that is currently being loaded, while it is being loaded?
javascript jquery arrays async-await
asked Nov 25 '18 at 7:24
tincopper2tincopper2
449
Where are the promises in your code? Which part is actually asynchronous?
– Bergi
Nov 25 '18 at 12:13
@Bergi can I not just use some sort of wait function before continuing my code?
– tincopper2
Nov 27 '18 at 1:22
No, you will need to use a specific wait function, and if you want to wait for something it'll be asychronous. But what in your code snippet above do you want to wait for?
– Bergi
Nov 27 '18 at 8:00
@Bergi page ready, I have it specified, I only want to update a doc as I am running my code, so the user can see the div update as the code is running
– tincopper2
Nov 28 '18 at 14:25
The document does get ready only once. If you change something, that doesn't "un-ready" the page. If your problem is long-running code and the browser doesn't render your change soon enough, the only thing you can do is to make it asynchronous with a little timeout.
– Bergi
Nov 28 '18 at 14:40
|
show 2 more comments
0
0
0
I am trying to find out how to have all of these things in the same function:
- An array of objects where sections of it are generated through a time-consuming function
- The DOM loading before each attempt at loading the next section of array objects
I have tried Promise, recursive functions to my best ability, to no prevail.
Here is the code I am manipulating:
showLoader();
var preArray = new Array();
var subjects = scrapeSubjects();
function next(subject, prearray) {
if (subject.length) {
//Writes an element specifying the current section being loaded for the user on a loading page
writeToLoader(subject[0]);
$( document ).ready( function() { next(subject); });
prearray = prearray.concat(pullData(subject.shift()));
}
};
preArray = next(subjects, preArray);
var array = stripNonRooms(preArray, roomsArray);
localStorage.setItem('data', JSON.stringify(array));
//hides the loader when it is complete
var loader = document.getElementById("loader");
loader.style.display = "none";
Is there anything I can do to show the user the section that is currently being loaded, while it is being loaded?
javascript jquery arrays async-await
asked Nov 25 '18 at 7:24
tincopper2tincopper2
449
I am trying to find out how to have all of these things in the same function:
- An array of objects where sections of it are generated through a time-consuming function
- The DOM loading before each attempt at loading the next section of array objects
I have tried Promise, recursive functions to my best ability, to no prevail.
Here is the code I am manipulating:
showLoader();
var preArray = new Array();
var subjects = scrapeSubjects();
function next(subject, prearray) {
if (subject.length) {
//Writes an element specifying the current section being loaded for the user on a loading page
writeToLoader(subject[0]);
$( document ).ready( function() { next(subject); });
prearray = prearray.concat(pullData(subject.shift()));
}
};
preArray = next(subjects, preArray);
var array = stripNonRooms(preArray, roomsArray);
localStorage.setItem('data', JSON.stringify(array));
//hides the loader when it is complete
var loader = document.getElementById("loader");
loader.style.display = "none";
Is there anything I can do to show the user the section that is currently being loaded, while it is being loaded?
javascript jquery arrays async-await
javascript jquery arrays async-await
asked Nov 25 '18 at 7:24
tincopper2tincopper2
449
asked Nov 25 '18 at 7:24
tincopper2tincopper2
449
asked Nov 25 '18 at 7:24
tincopper2tincopper2
449
asked Nov 25 '18 at 7:24
tincopper2tincopper2
449
asked Nov 25 '18 at 7:24
tincopper2tincopper2
449
449
Where are the promises in your code? Which part is actually asynchronous?
– Bergi
Nov 25 '18 at 12:13
@Bergi can I not just use some sort of wait function before continuing my code?
– tincopper2
Nov 27 '18 at 1:22
No, you will need to use a specific wait function, and if you want to wait for something it'll be asychronous. But what in your code snippet above do you want to wait for?
– Bergi
Nov 27 '18 at 8:00
@Bergi page ready, I have it specified, I only want to update a doc as I am running my code, so the user can see the div update as the code is running
– tincopper2
Nov 28 '18 at 14:25
The document does get ready only once. If you change something, that doesn't "un-ready" the page. If your problem is long-running code and the browser doesn't render your change soon enough, the only thing you can do is to make it asynchronous with a little timeout.
– Bergi
Nov 28 '18 at 14:40
|
show 2 more comments
Where are the promises in your code? Which part is actually asynchronous?
– Bergi
Nov 25 '18 at 12:13
@Bergi can I not just use some sort of wait function before continuing my code?
– tincopper2
Nov 27 '18 at 1:22
No, you will need to use a specific wait function, and if you want to wait for something it'll be asychronous. But what in your code snippet above do you want to wait for?
– Bergi
Nov 27 '18 at 8:00
@Bergi page ready, I have it specified, I only want to update a doc as I am running my code, so the user can see the div update as the code is running
– tincopper2
Nov 28 '18 at 14:25
The document does get ready only once. If you change something, that doesn't "un-ready" the page. If your problem is long-running code and the browser doesn't render your change soon enough, the only thing you can do is to make it asynchronous with a little timeout.
– Bergi
Nov 28 '18 at 14:40
Where are the promises in your code? Which part is actually asynchronous?
– Bergi
Nov 25 '18 at 12:13
Where are the promises in your code? Which part is actually asynchronous?
– Bergi
Nov 25 '18 at 12:13
@Bergi can I not just use some sort of wait function before continuing my code?
– tincopper2
Nov 27 '18 at 1:22
@Bergi can I not just use some sort of wait function before continuing my code?
– tincopper2
Nov 27 '18 at 1:22
No, you will need to use a specific wait function, and if you want to wait for something it'll be asychronous. But what in your code snippet above do you want to wait for?
– Bergi
Nov 27 '18 at 8:00
No, you will need to use a specific wait function, and if you want to wait for something it'll be asychronous. But what in your code snippet above do you want to wait for?
– Bergi
Nov 27 '18 at 8:00
@Bergi page ready, I have it specified, I only want to update a doc as I am running my code, so the user can see the div update as the code is running
– tincopper2
Nov 28 '18 at 14:25
@Bergi page ready, I have it specified, I only want to update a doc as I am running my code, so the user can see the div update as the code is running
– tincopper2
Nov 28 '18 at 14:25
The document does get ready only once. If you change something, that doesn't "un-ready" the page. If your problem is long-running code and the browser doesn't render your change soon enough, the only thing you can do is to make it asynchronous with a little timeout.
– Bergi
Nov 28 '18 at 14:40
The document does get ready only once. If you change something, that doesn't "un-ready" the page. If your problem is long-running code and the browser doesn't render your change soon enough, the only thing you can do is to make it asynchronous with a little timeout.
– Bergi
Nov 28 '18 at 14:40
|
show 2 more comments
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Where are the promises in your code? Which part is actually asynchronous?
– Bergi
Nov 25 '18 at 12:13
@Bergi can I not just use some sort of wait function before continuing my code?
– tincopper2
Nov 27 '18 at 1:22
No, you will need to use a specific wait function, and if you want to wait for something it'll be asychronous. But what in your code snippet above do you want to wait for?
– Bergi
Nov 27 '18 at 8:00
@Bergi page ready, I have it specified, I only want to update a doc as I am running my code, so the user can see the div update as the code is running
– tincopper2
Nov 28 '18 at 14:25
The document does get ready only once. If you change something, that doesn't "un-ready" the page. If your problem is long-running code and the browser doesn't render your change soon enough, the only thing you can do is to make it asynchronous with a little timeout.
– Bergi
Nov 28 '18 at 14:40