diff options
Diffstat (limited to 'node_modules/lodash/_hasPath.js')
-rw-r--r-- | node_modules/lodash/_hasPath.js | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/node_modules/lodash/_hasPath.js b/node_modules/lodash/_hasPath.js new file mode 100644 index 0000000..93dbde1 --- /dev/null +++ b/node_modules/lodash/_hasPath.js @@ -0,0 +1,39 @@ +var castPath = require('./_castPath'), + isArguments = require('./isArguments'), + isArray = require('./isArray'), + isIndex = require('./_isIndex'), + isLength = require('./isLength'), + toKey = require('./_toKey'); + +/** + * 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) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); +} + +module.exports = hasPath; |