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| author | Arman Shah <[email protected]> | 2018-02-19 23:50:04 -0800 |
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| committer | Arman Shah <[email protected]> | 2018-02-19 23:50:04 -0800 |
| commit | ae34dcfd3823a609ba7182f2d6eda593be876f7d (patch) | |
| tree | b9d7f2884c4999349418cbdc4f9ab46d113e0afd /node_modules/wrappy/README.md | |
| parent | Initial commit (diff) | |
| download | launcher-ae34dcfd3823a609ba7182f2d6eda593be876f7d.tar.xz launcher-ae34dcfd3823a609ba7182f2d6eda593be876f7d.zip | |
add base files
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| -rw-r--r-- | node_modules/wrappy/README.md | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/node_modules/wrappy/README.md b/node_modules/wrappy/README.md new file mode 100644 index 0000000..98eab25 --- /dev/null +++ b/node_modules/wrappy/README.md @@ -0,0 +1,36 @@ +# wrappy + +Callback wrapping utility + +## USAGE + +```javascript +var wrappy = require("wrappy") + +// var wrapper = wrappy(wrapperFunction) + +// make sure a cb is called only once +// See also: http://npm.im/once for this specific use case +var once = wrappy(function (cb) { + var called = false + return function () { + if (called) return + called = true + return cb.apply(this, arguments) + } +}) + +function printBoo () { + console.log('boo') +} +// has some rando property +printBoo.iAmBooPrinter = true + +var onlyPrintOnce = once(printBoo) + +onlyPrintOnce() // prints 'boo' +onlyPrintOnce() // does nothing + +// random property is retained! +assert.equal(onlyPrintOnce.iAmBooPrinter, true) +``` |