Repository URL to install this package:
|
Version:
0.0.2 ▾
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var baseCastPath = require('./_baseCastPath'),
isArguments = require('./isArguments'),
isArray = require('./isArray'),
isIndex = require('./_isIndex'),
isKey = require('./_isKey'),
isLength = require('./isLength'),
isString = require('./isString'),
last = require('./last'),
parent = require('./_parent');
/**
* Checks if `path` exists on `object`.
*
* @private
* @param {Object} object The object to query.
* @param {Array|string} path The path to check.
* @param {Function} hasFunc The function to check properties.
* @returns {boolean} Returns `true` if `path` exists, else `false`.
*/
function hasPath(object, path, hasFunc) {
if (object == null) {
return false;
}
var result = hasFunc(object, path);
if (!result && !isKey(path)) {
path = baseCastPath(path);
object = parent(object, path);
if (object != null) {
path = last(path);
result = hasFunc(object, path);
}
}
var length = object ? object.length : undefined;
return result || (
!!length && isLength(length) && isIndex(path, length) &&
(isArray(object) || isString(object) || isArguments(object))
);
}
module.exports = hasPath;