/*!
* Vue.js v2.5.21
* (c) 2014-2018 Evan You
* Released under the MIT License.
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global.Vue = factory());
}(this, (function () { 'use strict';
/* */
var emptyObject = Object.freeze({});
// These helpers produce better VM code in JS engines due to their
// explicitness and function inlining.
function isUndef (v) {
return v === undefined || v === null
}
function isDef (v) {
return v !== undefined && v !== null
}
function isTrue (v) {
return v === true
}
function isFalse (v) {
return v === false
}
/**
* Check if value is primitive.
*/
function isPrimitive (value) {
return (
typeof value === 'string' ||
typeof value === 'number' ||
// $flow-disable-line
typeof value === 'symbol' ||
typeof value === 'boolean'
)
}
/**
* Quick object check - this is primarily used to tell
* Objects from primitive values when we know the value
* is a JSON-compliant type.
*/
function isObject (obj) {
return obj !== null && typeof obj === 'object'
}
/**
* Get the raw type string of a value, e.g., [object Object].
*/
var _toString = Object.prototype.toString;
function toRawType (value) {
return _toString.call(value).slice(8, -1)
}
/**
* Strict object type check. Only returns true
* for plain JavaScript objects.
*/
function isPlainObject (obj) {
return _toString.call(obj) === '[object Object]'
}
function isRegExp (v) {
return _toString.call(v) === '[object RegExp]'
}
/**
* Check if val is a valid array index.
*/
function isValidArrayIndex (val) {
var n = parseFloat(String(val));
return n >= 0 && Math.floor(n) === n && isFinite(val)
}
/**
* Convert a value to a string that is actually rendered.
*/
function toString (val) {
return val == null
? ''
: typeof val === 'object'
? JSON.stringify(val, null, 2)
: String(val)
}
/**
* Convert an input value to a number for persistence.
* If the conversion fails, return original string.
*/
function toNumber (val) {
var n = parseFloat(val);
return isNaN(n) ? val : n
}
/**
* Make a map and return a function for checking if a key
* is in that map.
*/
function makeMap (
str,
expectsLowerCase
) {
var map = Object.create(null);
var list = str.split(',');
for (var i = 0; i < list.length; i++) {
map[list[i]] = true;
}
return expectsLowerCase
? function (val) { return map[val.toLowerCase()]; }
: function (val) { return map[val]; }
}
/**
* Check if a tag is a built-in tag.
*/
var isBuiltInTag = makeMap('slot,component', true);
/**
* Check if an attribute is a reserved attribute.
*/
var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
/**
* Remove an item from an array.
*/
function remove (arr, item) {
if (arr.length) {
var index = arr.indexOf(item);
if (index > -1) {
return arr.splice(index, 1)
}
}
}
/**
* Check whether an object has the property.
*/
var hasOwnProperty = Object.prototype.hasOwnProperty;
function hasOwn (obj, key) {
return hasOwnProperty.call(obj, key)
}
/**
* Create a cached version of a pure function.
*/
function cached (fn) {
var cache = Object.create(null);
return (function cachedFn (str) {
var hit = cache[str];
return hit || (cache[str] = fn(str))
})
}
/**
* Camelize a hyphen-delimited string.
*/
var camelizeRE = /-(\w)/g;
var camelize = cached(function (str) {
return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
});
/**
* Capitalize a string.
*/
var capitalize = cached(function (str) {
return str.charAt(0).toUpperCase() + str.slice(1)
});
/**
* Hyphenate a camelCase string.
*/
var hyphenateRE = /\B([A-Z])/g;
var hyphenate = cached(function (str) {
return str.replace(hyphenateRE, '-$1').toLowerCase()
});
/**
* Simple bind polyfill for environments that do not support it,
* e.g., PhantomJS 1.x. Technically, we don't need this anymore
* since native bind is now performant enough in most browsers.
* But removing it would mean breaking code that was able to run in
* PhantomJS 1.x, so this must be kept for backward compatibility.
*/
/* istanbul ignore next */
function polyfillBind (fn, ctx) {
function boundFn (a) {
var l = arguments.length;
return l
? l > 1
? fn.apply(ctx, arguments)
: fn.call(ctx, a)
: fn.call(ctx)
}
boundFn._length = fn.length;
return boundFn
}
function nativeBind (fn, ctx) {
return fn.bind(ctx)
}
var bind = Function.prototype.bind
? nativeBind
: polyfillBind;
/**
* Convert an Array-like object to a real Array.
*/
function toArray (list, start) {
start = start || 0;
var i = list.length - start;
var ret = new Array(i);
while (i--) {
ret[i] = list[i + start];
}
return ret
}
/**
* Mix properties into target object.
*/
function extend (to, _from) {
for (var key in _from) {
to[key] = _from[key];
}
return to
}
/**
* Merge an Array of Objects into a single Object.
*/
function toObject (arr) {
var res = {};
for (var i = 0; i < arr.length; i++) {
if (arr[i]) {
extend(res, arr[i]);
}
}
return res
}
/* eslint-disable no-unused-vars */
/**
* Perform no operation.
* Stubbing args to make Flow happy without leaving useless transpiled code
* with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
*/
function noop (a, b, c) {}
/**
* Always return false.
*/
var no = function (a, b, c) { return false; };
/* eslint-enable no-unused-vars */
/**
* Return the same value.
*/
var identity = function (_) { return _; };
/**
* Generate a string containing static keys from compiler modules.
*/
function genStaticKeys (modules) {
return modules.reduce(function (keys, m) {
return keys.concat(m.staticKeys || [])
}, []).join(',')
}
/**
* Check if two values are loosely equal - that is,
* if they are plain objects, do they have the same shape?
*/
function looseEqual (a, b) {
if (a === b) { return true }
var isObjectA = isObject(a);
var isObjectB = isObject(b);
if (isObjectA && isObjectB) {
try {
var isArrayA = Array.isArray(a);
var isArrayB = Array.isArray(b);
if (isArrayA && isArrayB) {
return a.length === b.length && a.every(function (e, i) {
return looseEqual(e, b[i])
})
} else if (a instanceof Date && b instanceof Date) {
return a.getTime() === b.getTime()
} else if (!isArrayA && !isArrayB) {
var keysA = Object.keys(a);
var keysB = Object.keys(b);
return keysA.length === keysB.length && keysA.every(function (key) {
return looseEqual(a[key], b[key])
})
} else {
/* istanbul ignore next */
return false
}
} catch (e) {
/* istanbul ignore next */
return false
}
} else if (!isObjectA && !isObjectB) {
return String(a) === String(b)
} else {
return false
}
}
/**
* Return the first index at which a loosely equal value can be
* found in the array (if value is a plain object, the array must
* contain an object of the same shape), or -1 if it is not present.
*/
function looseIndexOf (arr, val) {
for (var i = 0; i < arr.length; i++) {
if (looseEqual(arr[i], val)) { return i }
}
return -1
}
/**
* Ensure a fu
