ens

ens

Easily ensure data types

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1

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2

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Last Commit

5yrs ago

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2

Package

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0

Size (min+gzip)

0.5KB

License

MIT

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ens

Easily ensure data types.

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Why

// Ensure variable `obj` is an object, the traditional way
obj = (typeof obj === 'object' && !(obj instanceof Array)) ? obj : {};
// Ensure variable obj is an object, using ens.obj
obj = ens.obj(obj);

ens makes it easy to ensure JS data types. With JS, ensuring data types requires a lot of ugly code. It's easy to specify variable defaults though: obj = obj || {}. The problem with this pattern is, when obj is set to a value which evaluates to true, the default value {} won't be bound to obj. This is where ens comes in: obj = ens.obj(obj). Which results in the binding of an object to obj no mather what type of data obj is.

ens will use the is npm module soon, and will support its supported datatypes.

Install

npm install ens

Use

var ens = require('ens');

ens.arr();       // []
ens.arr({});     // []
ens.arr([1, 2]); // [1, 2]

ens.boo();      // true
ens.boo({});    // true
ens.boo(false); // false

ens.fun();                   // function () {}
ens.fun({});                 // function () {}
ens.fun(function test() {}); // function test () {}

ens.num();   // 1
ens.num({}); // 1
ens.num(5);  // 5

ens.obj();         // {}
ens.obj([]);       // {}
ens.obj({a: 'b'}); // {a: 'b'}

ens.str();       // ''
ens.str({});     // ''
ens.str('test'); // 'test'

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