Questions tagged as 'javascript'

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How to get 'unique identifier' from the browser

In my searches I have already found the Object - navigator , to get the pertinent information to the user 's browser. However, I did not find anything satisfactory in this navigator that I can use to join to generate a unique identifier of...
asked by 06.02.2017 / 16:47
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Error in build ionic framework

Gentlemen, I migrated to linux and I have a question / problem. I already have the android sdk installed with their respective dependencies installed, I squeeze the android command and open the sdk manager normally, I put the environment vari...
asked by 03.12.2016 / 17:54
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Help with API Instagram

Good morning everyone, I'm a beginner in WEB practices and I'm getting a lot of the Instagram API, all the examples I tested did not work, I found some posts here in the Instafeed.JS forum but I did not understand how to implement and start usin...
asked by 05.11.2016 / 18:33
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How to upload a photo using jQuery PictureCut?

I would like to upload of the photo using the jQuery PictureCut . I followed all the guidelines provided by the site by installing the folders and setting them to the code, but it is not working on my server. It does not even send or appea...
asked by 04.11.2016 / 20:20
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CRUD with Javascript

Well, I need to do a CRUD and then a search on what is submitted on my form. I have already created the page and can already submit my form and show it in a table. I'm not sure how to do this. index.html <!DOCTYPE html> <...
asked by 20.08.2017 / 22:07
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Javascript: why does eval ("023") return 19? [duplicate]

I know that the function should not be used indiscriminately, because it has several security implications, as can be seen here: Is Eval a Good Guy or a Bandit? But I was doing a simple calculator, where the text of the input, after tr...
asked by 28.03.2017 / 19:04
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Fit image inside the canvas

I have a page that allows you to insert an image inside the canvas element and it works perfectly. Now, what I need is a way to limit the positioning of the image inside the canvas, not allowing any remaining white space, regardless of the po...
asked by 28.06.2017 / 16:16
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Is there any way to create a moip account by api from moip?

I am developing a marketplace system and each salesperson needs to have a MOIP account to receive sales. As these vendors are very lazy I thought about automating this so they do not have to create a MOIP account, which is automatically cre...
asked by 04.01.2015 / 19:03
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Max Array size passed by POST

I am doing a JavaScript function to read a file that the user is uploading and sends to PHP via POST only content for insertion into the database. I'm trying to send a array with the contents of the file, each posi...
asked by 24.02.2015 / 13:59
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How to alphabetize a select obtained through a JSON?

I set up a select through JSON below, the only problem is that it follows the order of the key, how to organize it alphabetically? { "12": "Acre", "27": "Alagoas", "16": "Amapá", "13": "Amazonas", "29": "Bahia...
asked by 11.07.2016 / 19:54