aaac7fed
 liuqimichale
add
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/*!
* get-value <https://github.com/jonschlinkert/get-value>
*
* Copyright (c) 2014-2015, Jon Schlinkert.
* Licensed under the MIT License.
*/
module.exports = function(obj, prop, a, b, c) {
if (!isObject(obj) || !prop) {
return obj;
}
prop = toString(prop);
// allowing for multiple properties to be passed as
// a string or array, but much faster (3-4x) than doing
// `[].slice.call(arguments)`
if (a) prop += '.' + toString(a);
if (b) prop += '.' + toString(b);
if (c) prop += '.' + toString(c);
if (prop in obj) {
return obj[prop];
}
var segs = prop.split('.');
var len = segs.length;
var i = -1;
while (obj && (++i < len)) {
var key = segs[i];
while (key[key.length - 1] === '\\') {
key = key.slice(0, -1) + '.' + segs[++i];
}
obj = obj[key];
}
return obj;
};
function isObject(val) {
return val !== null && (typeof val === 'object' || typeof val === 'function');
}
function toString(val) {
if (!val) return '';
if (Array.isArray(val)) {
return val.join('.');
}
return val;
}
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