Created
July 20, 2015 07:28
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merge from highcharts
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function merge() { | |
var i, | |
args = arguments, | |
len, | |
ret = {}, | |
doCopy = function (copy, original) { | |
var value, key; | |
// An object is replacing a primitive | |
if (typeof copy !== 'object') { | |
copy = {}; | |
} | |
for (key in original) { | |
if (original.hasOwnProperty(key)) { | |
value = original[key]; | |
// Copy the contents of objects, but not arrays or DOM nodes | |
if (value && typeof value === 'object' && Object.prototype.toString.call(value) !== '[object Array]' && | |
key !== 'renderTo' && typeof value.nodeType !== 'number') { | |
copy[key] = doCopy(copy[key] || {}, value); | |
// Primitives and arrays are copied over directly | |
} else { | |
copy[key] = original[key]; | |
} | |
} | |
} | |
return copy; | |
}; | |
// If first argument is true, copy into the existing object. Used in setOptions. | |
if (args[0] === true) { | |
ret = args[1]; | |
args = Array.prototype.slice.call(args, 2); | |
} | |
// For each argument, extend the return | |
len = args.length; | |
for (i = 0; i < len; i++) { | |
ret = doCopy(ret, args[i]); | |
} | |
return ret; | |
} |
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