#once-upon
===========

Executes a callback at most once upon the first of any number of events.

### example

var once = require('once-upon');
var E = require('events').EventEmitter;

onceUpon('SIGINT SIGTERM', process, function(){
  console.log('I will be called at most once');
});


process.emit('SIGTERM'); // "I will be called at most once"

### install

```
> npm install once-upon
```

### License

MIT



Executes a callback once upon the first of a list of events. 

Announcing our $40M Series B led by Abstract Ventures

once-upon

Executes a callback once upon the first of a list of events

aaron

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Source files contain bidirectional unicode control characters. This could indicate a Trojan source supply chain attack. See: trojansource.codes for more information.

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Bidirectional unicode control characters

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Bin script confusion

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

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Debug access

The maintainer of the package marked it as deprecated. This could indicate that a single version should not be used, or that the package is no longer maintained and any new vulnerabilities will not be fixed.

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Deprecated

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Deprecated license

Package name is similar to other popular packages and may not be the package you want.

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Possible typosquat attack

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Dynamic require

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Empty package

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File dependency

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Filesystem access

Package has a dependency with a floating version range. This can cause issues if the dependency publishes a new major version.

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High entropy strings

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Unicode homoglyphs

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HTTP dependency

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Install scripts

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Invalid manifest file

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Manifest confusion

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Medium CVE

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Low CVE

This package contains minified code. This may be harmless in some cases where minified code is included in packaged libraries, however packages on npm should not minify code.

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(Experimental) A package's licensing information has fine-grained problems.

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Modified license exception

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Modified license

What is network access?

Network access

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New author

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once-upon

#once-upon

example

install

License

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