Andreas Heissenberger – Medium

Andreas Heissenberger

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Andreas Heissenberger

React Components render twice — any way to fix this?

Many developer have implemented a similar functional component and have seen this behavior. Some have even opened a bug report.

3 min readMay 27, 2020

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React Components render twice — any way to fix this?

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Andreas Heissenberger

Multiple calls to Jest mock returns last call props for all calls

Passing object as arguments to functions are only references to the original object in memory

4 min readApr 20, 2023

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Multiple calls to Jest mock returns last call props for all calls

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Andreas Heissenberger

Port forward with DevContainer and Docker Compose

Use forwarding ports with in multi container docker compose docker desktop or vscode cloud setup.

5 min readOct 14, 2022

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Port forward with DevContainer and Docker Compose

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Andreas Heissenberger

Howto handle key specification without a key length and key was too long

Handle mysql errors when defining primary or index keys for TEXT, BLOB, VARCHAR data types.

4 min readJun 3, 2022

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SQL Code example with error message

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Andreas Heissenberger

Microsoft Teams App fails to open from Safari

Fix for Link from an E-Mail or calendar entry opens screen with Button “Open your Teams app” which fails.

2 min readMar 24, 2022

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Microsoft Teams App fails to open from Safari

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Andreas Heissenberger

Docker Desktop — should I pay?

Anyone who needs arguments why it is worth to pay or stay and tipps about alternatives.

4 min readSep 13, 2021

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Docker Desktop — should I pay?

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Andreas Heissenberger

Docker compose up build fails to update container

Learn about docker anonymous volumes and fix the problem

5 min readMay 28, 2021

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Docker compose up build fails to update container

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Andreas Heissenberger

Docker fails with OCI runtime create failed

Solve this problem with removing MountFlags from your system configuration

2 min readMay 27, 2021

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Docker fails with OCI runtime create failed

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Andreas Heissenberger

MacOS User can delete all Attachments from multiple selected Emails with the integrated Mail App…

1 min readMay 3, 2021

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Andreas Heissenberger

ReScript an awsome Option dismissed!

Rescript provides many features Javascript and even Typescript are missing und is much simpler to use. But it failes when it commes to…

6 min readFeb 12, 2021

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ReScript an awsome Option dismissed!

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Andreas Heissenberger

Andreas Heissenberger

Fast-track professional successful in the design, development and deployment of technology strategies and policy. Experienced leading Internet and IS operations

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