Reusable Object.prototype.toString type checking library
npm install isa-libCopyright (c) 2013 Brielle Harrison
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of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
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To install the isA library, invoke
``shell`
npm install isa-lib
Reusable node.js/browser JavaScript library that exposes some isXXX() type of functions. These functions do as much as possible to provide cross JavaScript VM compatible methods to determine whether or not an object is of a given type.
If this library is included in a browser via a script tag, all of it's components will be placed in the window scope.
html
`If this library is require()'ed in node.js, it will return a function that takes either 0 or 1 parameters. If no parameters are required, the functions and properties of this library are returned in a single object literal that
can be used for assignment normally. If the function is invoked with a parameter, that parameter is assumed to be the scope into which these functions and properties will be copied.
Example usage:
javascript
var isA = require('isa-lib')(); // scoped to isA param
var isA = require('isa-lib')(global); // scoped to isA AND global
`Library contents
javascript
Function isA(type, object);
Function isUndefined(object);
Function isFunction(object);
Function isBoolean(object);
Function isObject(object);
Function isRegExp(object);
Function isString(object);
Function isNumber(object);
Function isArray(object);
Function isError(object);
Function isNull(object);// Function to inject this library to a JavaScript scope object
Function INJECT_IS_A_LIB(scopeObject);
// Anything less than 1 indicates pairs of incorrect type designations
Number IS_A_ACCURACY
// Array of pairs of types that incorrectly return the same value
Array IS_A_QUESTIONABLE
// Constants of known base types
Object IS_A
// Back reference to type string from constructor
Array IS_A_BACKREF
``