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Questions and Answers

About 153 questions

How to install Chrome binary in Heroku?

Chrome binary is different from chromedriver Unable to install Chrome in heroku at the moment

Asked on 7 February 2018

Bundle install fails due to nokogiri 1.6.8 problem

On Mac OS El Capitan, use the following to install Nokogiri. gem install nokogiri:1.6.8 -- --with-xml2-include=/Applications/Xcode.app/Contents/Develo ...

Asked on 7 February 2018

How to use heroku's ephemeral filesystem

You can create a file under the '/tmp' directory, and that file will be destroyed after the request is complete. I'm doing this on Cedar, and I haven' ...

Asked on 7 February 2018

Pagination Best Practices

https://www.citusdata.com/blog/1872-joe-nelson/409-five-ways-paginate-postgres-basic-exotic

Asked on 7 February 2018

Where can I find free web layout designs and images for my website

I am building a website but since I am not a designer, I would like to reference free to use designs and use free images and icons. Where can I find t ...

Asked on 7 February 2018

Why does brpop in Redis have a long response time (1s to 1.5s)?

You want that behavior. That's what Redis is doing while it's waiting for work. It's a long running blocking operation because Redis can then tell you ...

Asked on 7 February 2018

Amazon AWS S3 Error: No 'Access-Control-Allow-Origin' header is present on the requested resource.

I am trying to upload files from my browser app to s3 but I get the following error when uploading: No 'Access-Control-Allow-Origin' header is present ...

Asked on 7 February 2018

Cannot find module 'webpack'

When running foreman start -f Procfile.dev, it says cannot find module 'webpack' img Answer Need to install webpack with npm $ npm install webpack [- ...

Asked on 7 February 2018

Set checkboxes to checked by default

This is not working. <label><input type="radio " name="indoor-outdoor" checked by default> Indoor</label> <label><input type="radio" name="indoor-outd ...

Asked on 7 February 2018

Your POST request fields preceeding the upload file was too large

Testing AWS S3 direct upload with Postman Reading this thread on github: https://github.com/waynehoover/s3_direct_upload/issues/45

Asked on 7 February 2018

Change iOS App Display Name

How to Change iOS App Display Name in Xcode? Answer In Xcode, you can change your iOS App Display Name under Build Settings > Packaging > Product Nam ...

Asked on 7 February 2018

How to add your sitemap file located in Amazon S3 into Google Webmaster tools

I am using sitemap_generator gem (https://github.com/kjvarga/sitemap_generator) to dynamically generate sitemap file, which gets automatically uploade ...

Asked on 7 February 2018

XCode ld: file not found:

In a react-native project, after changing Product Name, I encounter the following error in Xcode XCode ld: file not found: /Users/someuser/Library/De ...

Asked on 7 February 2018

React Router Restricted Routes

This document serves as an annotated guide to the official react router documentation on restricted routes. To start, we need to setup a base app wit ...

Asked on 7 February 2018

Jest test React stateless functions

When testing a React stateless function, Jest can't use findDOMNode to find the component. According to React Docs https://facebook.github.io/react/do ...

Asked on 7 February 2018

Free code camp React recipe editor

Any reviews/comments for my code here: https://codepen.io/gavlooth/pen/JKwyQQ Hi Gavlooth, user experience wise, everything seems to be working the w ...

Asked on 7 February 2018

[Reactjs] How do you focus on an input when the page is loaded?

You should do it in componentDidMount render: function() { return <TextInput ref={(c) => this._input = c} />; }, componentDidMount: function() { t ...

Asked on 7 February 2018

React Router Parent Route changes based on conditions of Child Routes

https://github.com/reactjs/react-router/blob/master/docs/Troubleshooting.md#passing-additional-values-into-route-components https://github.com/reactj ...

Asked on 7 February 2018

Creating tables in React is annoying

https://github.com/facebook/react/issues/3979 https://github.com/facebook/react/issues/2127

Asked on 7 February 2018

How to get active route name in Navigation layout with React Router

Hello, I have a navigation layout with a menu and the title of the current page. How can I get the current route name to show in the title? Here is ho ...

Asked on 7 February 2018

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