(function () {
|
var isNode = typeof module !== 'undefined' &&
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typeof module.exports !== 'undefined',
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_;
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if (isNode) {
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_ = require('lodash').runInContext();
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}
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else {
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// browser environment
|
_ = window._;
|
}
|
|
var mixins = (function () {
|
var extendWith = {};
|
|
/**
|
* _.uuid
|
*
|
* Usage:
|
* _.uuid()
|
* Produces:
|
* '9716498c-45df-47d2-8099-3f678446d776'
|
*
|
* Generates an RFC 4122 version 4 uuid
|
* @see http://stackoverflow.com/a/8809472
|
* @returns {String} the generated uuid
|
*/
|
extendWith.uuid = function () {
|
var d = _.now();
|
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
|
var r = (d + _.random(16)) % 16 | 0;
|
d = Math.floor(d / 16);
|
return (c == 'x' ? r : (r & 0x3 | 0x8)).toString(16);
|
});
|
};
|
|
/**
|
* _.isUuid4
|
*
|
* Usage:
|
* _.isUuid4(_.uuid())
|
* Produces:
|
* true|false
|
*
|
* Validates a version 4 uuid string
|
* @param {String} uuid - the uuid under test
|
* @returns {Boolean} true if the uuid under test is a valid uuid
|
**/
|
extendWith.isUuid4 = function (uuid) {
|
var re = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
|
return re.test(uuid);
|
};
|
|
/**
|
* _.isUuid
|
*
|
* Usage:
|
* _.isUuid(_.uuid())
|
* Produces:
|
* true|false
|
*
|
* Validates any version uuid string
|
* @param {String} uuid - the uuid under test
|
* @returns {Boolean} true if the uuid under test is a valid uuid
|
**/
|
extendWith.isUuid = function (uuid) {
|
var re = /^([a-f\d]{8}(-[a-f\d]{4}){3}-[a-f\d]{12}?)$/i;
|
return re.test(uuid);
|
};
|
|
/**
|
* _.compactObject
|
*
|
* Usage:
|
* var obj = {a: false, b: 3, c: ''};
|
* _.compactObject(obj)
|
* Produces:
|
* {b: 3}
|
*
|
* Removes properties from an object where the value is falsy.
|
* Like _.compact but for objects
|
* @param {Object} obj - the object to remove falsy properties from
|
* @returns {Object} the object with falsy properties removed
|
**/
|
|
return extendWith;
|
})();
|
|
/**
|
* bootstrap mixins for node and the browser
|
* For the browser: lodash must be explicitly included above
|
* this library
|
* For node: this library will wrap lodash so there is no
|
* need to include lodash
|
*/
|
if (isNode) {
|
_.mixin(mixins, {'chain': true});
|
module.exports = _;
|
}
|
else {
|
// browser environment
|
if (typeof _ === 'function') {
|
_.mixin(mixins, {'chain': true});
|
}
|
else {
|
throw new Error('lodash must be included before lodash-extensions.');
|
}
|
}
|
})();
|
