base64-js | A polyfill for base64 functions atob and btoa | User Interface library
kandi X-RAY | base64-js Summary
kandi X-RAY | base64-js Summary
A polyfill for base64 functions atob and btoa. It also fixes IE’s atob's inability to decode string containing certain whitespaces.
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Trending Discussions on base64-js
QUESTION
I am new to React and want to display an image downloaded as binary data. I download the image data from api call to adobe lightroom api. The api call works since the image is displayed in Postman without problems. I can also save the image data to a jpeg-file and it is displayed ok.
In React I want to do and for that to work I need to convert the binary data to a base64 encoded string. When i convert the downloaded jpeg using
cat image.jpeg|base64 > base64.txt
the resulting string works in my React app.
But when I try var theImage = btoa(binarydata)
in React I get Unhandled Rejection (InvalidCharacterError): Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the Latin1 range.
After searching the issue I try use var theImage = btoa(unescape(encodeURIComponent( binarydata )))
and similar proposed solution but resulting strings from those does not turn out to be a valid base64 encodings of the jpeg as it seem (I try the result from the conversions in online base64->image services and no image is shown). I have also tried other proposed solution such as base64-js and js-base64 libraries and non of those create a valid base64 valid image that can be shown in my React code.
How do you convert jpeg binary data to valid Base64 image encoding when btoa
throws latin1 exception?
ANSWER
Answered 2020-Dec-03 at 07:55You've said you're using axios.get
to get the image from the server. What you'll presumably get back will be a Buffer
or ArrayBuffer
or Blob
, etc., but it depends on what you do with the response you get from axios
.
I don't use axios
(never felt the need to), but you can readily get a data
URI for binary data from the server via fetch
:
QUESTION
I included a lot of background information to help you answer this question, however you can skip down to the heading called 'Questions' to skip to the main point.
BackgroundI'm new to using Cordova, and I'm new to an existing Cordova project I want to further develop. As a result, when I look at the project files, I am not sure what are choices made by the previous developers and what are choices made automatically by Cordova. I suspect that Cordova generates a lot of files that are not created by the application developers because in my case there are over 7900 files including source code and README's, and the application was previously (to my knowledge at least) developed by only one person.
While many questions could be asked from that perspective, I would like to narrow in on a specific question to avoid being too broad. I've noted that are many files within the path structure called index.js
.
ANSWER
Answered 2020-Apr-06 at 18:37You should edit /www/js/index.js
.
The other two files are created during the build process. A built Cordova app will have all www
folder contents inside an android app structure, that's why they are inside /platforms/android/app/src/main/
The other index.js
files are there because it's a Node.js pattern
QUESTION
Does anyone have experience publishing a .NET/Angular project to Netlify? I'm using the Angular Microsoft.AspNetCore.SpaTemplates template. On Netlify, I'm getting a non-zero exit code that's preventing me from publishing. Here is my output:
...ANSWER
Answered 2019-Jan-30 at 21:21Disclaimer: I work for Netlify
As we mentioned to you in your helpdesk ticket on this same topic, our deploy environment is very naked - you have to:
- specify dependencies that we can automatically install - npm/yarn deps, bower deps, gems and python packages.
- install other dependencies yourself. the 'dotnet' program will be one of this type. We don't have it in our install environment, so you need to somehow import a copy of it into the environment. Seems like you can download the entire SDK here: https://www.microsoft.com/net/download/linux and then you need to import ONLY what is necessary for your build - it will take a very long time to build your site if we have to download the entire SDK, so see what you can trim down to get 'dotnet' to run.
For the purposes of #2, you'll probably need to test things in our build environment. How to do that, and details you'll need about the build environment such as OS type so you can download the right version of the SDK are described in this article:
https://www.netlify.com/blog/2016/10/18/how-our-build-bots-build-sites/
This will take some work on your part. It will not be trivial. It is not something we can help with in more detail than that for free customers unless you come with specific questions and examples.
To address some thoughts in the comments:
- build.sh is indeed our build script
- 9:46:52 AM: /opt/build/build.sh: line 427: dotnet: command not found means that literally there is no dotnet command available to run - not that some config file is missing.
- we only try to run it once since you have set your command to use
&&
to chain several commands - one fails, the whole chain fails, and we don't need to run it two more times once the first failure occurs :)
QUESTION
The app runs fine on the emulator and all Android devices. When I try to run on an iOS device the app opens and then crashes almost instantly. I can't seem to locate the issue as s.Manager is not mentioned anywhere in my code.
What I have done:
- Deleted node_modules, updated some, reinstalled
- Deleted pod files, updated pods, reinstalled
Error logs:
...ANSWER
Answered 2019-Dec-10 at 16:01Turns out that running the following command fixes the issue.
QUESTION
ANSWER
Answered 2019-Jun-03 at 12:15Solved it by updating and adding some node packages.
package.json
QUESTION
I would like to list all the package with their versions, currently I'm doing npm list depth=100
I just put 100 so that it will return all dependencies under a package.
Currently I'm getting something like this:
...ANSWER
Answered 2019-Feb-21 at 06:07For the flat task try:
npm list |awk '{print $NF}'|tr "\n" ","
For the view task:
for package in $(npm list |awk '{print $NF}')
do
npm view $package
done
Publish:
for package in $(npm list |awk '{print $NF}')
do
npm publish $package
done
QUESTION
ANSWER
Answered 2019-Feb-10 at 17:27I had the same issue today and indeed not encouraging to have warnings on a fresh new project.
I just add babel core manually yarn add babel-core@^6.0.0
and did not had pbs to run the new app.
QUESTION
Created a new project using the aurelia-cli - SystemJS bundler option.
installed htmlparser2 module from npm which has buffer.js as a dependency.
getting the following error when attempting to import htmlparser2:
...ANSWER
Answered 2019-Feb-01 at 08:29I believe you are using cli built-in bundler (I wrote it), not webpack.
Yes, nodejs global var global
is currently not supported. Also nodejs global vars process
and Buffer
have similar issues.
The cli doc has a patch to support process
and Buffer
.
QUESTION
I am trying to find out if I can generate a base64 code with the following 3 values: color
,width
, height
. (Without external giants npm lib) I've only encountered a lib called base64-js. however, i do not need most functionalities.
Edit: Thanks to Victor. i edit his code a bit and the result is:
...ANSWER
Answered 2018-Dec-17 at 17:35Base64 is just an encoding which does not necessarily have anything to do with images. If you just need a placeholder i would recommend not adding the image until it is loaded and display a sized div
instead.
If you really need to have an image there you can just make the source an SVG, which you do not even need to encode to Base64, because its data is already text. So it looks something like this:
QUESTION
I always use to develop my projects natively for Android and iOS, but after many people talking to me about react-native, I decided to give it a try.
However, I got very frustrated at the very first initial step: create my first project.
This is my environment:
- macOS Mojave 10.14
- Xcode 10.0
- node v10.12.0
- watchman 4.9.0
- react-native-cli: 2.0.1
When I run the command react-native init AwesomeProject, I see many warnings like this:
...ANSWER
Answered 2018-Oct-16 at 16:04I was able to build and run my project following the instructions here.
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