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takumakei/is_array.js

Created October 19, 2011 14:57
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is_array
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is_array.js
// is_array():bool
// "JavaScript: The Good Parts by Douglas Crockford. Copyright 2008 Yahoo! Inc., 978-0-596-51774-8."
function is_array(value) {
return value &&
typeof value === 'object' &&
typeof value.length === 'number' &&
typeof value.splice === 'function' &&
!(value.propertyIsEnumerable('length'));
};
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