Within my package.json file, I currently have the following script:
"scripts": {
"test": "react-scripts test --watchAll=false"
},
I am looking to modify this script command dynamically so it becomes:
"test": "react-scripts test --watchAll=true"
Is there a way to achieve this without directly editing the package.json file?
Alternatively, is there a method to exclude any watch option entirely, resulting in:
react-scripts test
When invoking the script using npm run test.
i can adapt to the behavior you desire.
imagine you have this code snippet in your package.json
"scripts": {
"test": "react-scripts test"
}
you are able to add an argument when calling it, like so
npm test -- --watchAll=false
this is essentially equivalent to running
react-scripts test --watchAll=falsefalse for true within the command.
from my perspective, this approach seems more direct rather than resorting to alternative techniques. however, here are a couple of other methods:
utilize an environment variable that includes your arguments and reference it in the command in package.json. for instance,
in package.json:
"scripts": {
"test": "react-scripts test $REACT_OPTS"
}
$ TEST_OPTS="--watchAll=false"
$ npm test
modify the script directly in package.json
cat package.json \
| jq --arg v 'react-scripts test --watchAll=false' '.scripts.test = $v' \
| sponge package.json
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