Log in Get started

Back to Underscore

has.js

docs/modules/has.html

1.13.86.3 KB

Original Source

Jump To …+

modules/_baseCreate.js modules/_baseIteratee.js modules/_cb.js modules/_chainResult.js modules/_collectNonEnumProps.js modules/_createAssigner.js modules/_createEscaper.js modules/_createIndexFinder.js modules/_createPredicateIndexFinder.js modules/_createReduce.js modules/_createSizePropertyCheck.js modules/_deepGet.js modules/_escapeMap.js modules/_executeBound.js modules/_flatten.js modules/_getByteLength.js modules/_getLength.js modules/_group.js modules/_has.js modules/_hasObjectTag.js modules/_isArrayLike.js modules/_isBufferLike.js modules/_keyInObj.js modules/_methodFingerprint.js modules/_optimizeCb.js modules/_setup.js modules/_shallowProperty.js modules/_stringTagBug.js modules/_tagTester.js modules/_toBufferView.js modules/_toPath.js modules/_unescapeMap.js modules/after.js modules/allKeys.js modules/before.js modules/bind.js modules/bindAll.js modules/chain.js modules/chunk.js modules/clone.js modules/compact.js modules/compose.js modules/constant.js modules/contains.js modules/countBy.js modules/create.js modules/debounce.js modules/defaults.js modules/defer.js modules/delay.js modules/difference.js modules/each.js modules/escape.js modules/every.js modules/extend.js modules/extendOwn.js modules/filter.js modules/find.js modules/findIndex.js modules/findKey.js modules/findLastIndex.js modules/findWhere.js modules/first.js modules/flatten.js modules/functions.js modules/get.js modules/groupBy.js modules/has.js modules/identity.js modules/index-all.js modules/index-default.js modules/index.js modules/indexBy.js modules/indexOf.js modules/initial.js modules/intersection.js modules/invert.js modules/invoke.js modules/isArguments.js modules/isArray.js modules/isArrayBuffer.js modules/isBoolean.js modules/isDataView.js modules/isDate.js modules/isElement.js modules/isEmpty.js modules/isEqual.js modules/isError.js modules/isFinite.js modules/isFunction.js modules/isMap.js modules/isMatch.js modules/isNaN.js modules/isNull.js modules/isNumber.js modules/isObject.js modules/isRegExp.js modules/isSet.js modules/isString.js modules/isSymbol.js modules/isTypedArray.js modules/isUndefined.js modules/isWeakMap.js modules/isWeakSet.js modules/iteratee.js modules/keys.js modules/last.js modules/lastIndexOf.js modules/map.js modules/mapObject.js modules/matcher.js modules/max.js modules/memoize.js modules/min.js modules/mixin.js modules/negate.js modules/noop.js modules/now.js modules/object.js modules/omit.js modules/once.js modules/pairs.js modules/partial.js modules/partition.js modules/pick.js modules/pluck.js modules/property.js modules/propertyOf.js modules/random.js modules/range.js modules/reduce.js modules/reduceRight.js modules/reject.js modules/rest.js modules/restArguments.js modules/result.js modules/sample.js modules/shuffle.js modules/size.js modules/some.js modules/sortBy.js modules/sortedIndex.js modules/tap.js modules/template.js modules/templateSettings.js modules/throttle.js modules/times.js modules/toArray.js modules/toPath.js modules/underscore-array-methods.js modules/underscore.js modules/unescape.js modules/union.js modules/uniq.js modules/uniqueId.js modules/unzip.js modules/values.js modules/where.js modules/without.js modules/wrap.js modules/zip.js

has.js

import_hasfrom'./\_has.js';importtoPathfrom'./\_toPath.js';

Shortcut function for checking if an object has a given property directly on itself (in other words, not on a prototype). Unlike the internal has function, this public version can also traverse nested properties.

exportdefaultfunctionhas(obj, path) {
  path =toPath(path);varlength = path.length;for(vari =0; i < length; i++) {varkey = path[i];if(!\_has(obj, key))returnfalse;
    obj = obj[key];
  }return!!length;
}