82f2b76e25
We now use webpack instead of SystemJS, effectively bundling modules into one file (plus commons chunks) for every entry point. This results in a much smaller extension size (almost half). Furthermore we use yarn/npm even for extension run-time dependencies. This relieves us from manually vendoring and building dependencies. It's also easier to understand for new developers familiar with node.
148 lines
6.8 KiB
JavaScript
148 lines
6.8 KiB
JavaScript
var LazyWrapper = require('./_LazyWrapper'),
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LodashWrapper = require('./_LodashWrapper'),
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baseLodash = require('./_baseLodash'),
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isArray = require('./isArray'),
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isObjectLike = require('./isObjectLike'),
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wrapperClone = require('./_wrapperClone');
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/** Used for built-in method references. */
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var objectProto = Object.prototype;
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/** Used to check objects for own properties. */
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var hasOwnProperty = objectProto.hasOwnProperty;
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/**
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* Creates a `lodash` object which wraps `value` to enable implicit method
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* chain sequences. Methods that operate on and return arrays, collections,
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* and functions can be chained together. Methods that retrieve a single value
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* or may return a primitive value will automatically end the chain sequence
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* and return the unwrapped value. Otherwise, the value must be unwrapped
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* with `_#value`.
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*
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* Explicit chain sequences, which must be unwrapped with `_#value`, may be
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* enabled using `_.chain`.
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*
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* The execution of chained methods is lazy, that is, it's deferred until
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* `_#value` is implicitly or explicitly called.
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*
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* Lazy evaluation allows several methods to support shortcut fusion.
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* Shortcut fusion is an optimization to merge iteratee calls; this avoids
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* the creation of intermediate arrays and can greatly reduce the number of
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* iteratee executions. Sections of a chain sequence qualify for shortcut
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* fusion if the section is applied to an array and iteratees accept only
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* one argument. The heuristic for whether a section qualifies for shortcut
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* fusion is subject to change.
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*
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* Chaining is supported in custom builds as long as the `_#value` method is
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* directly or indirectly included in the build.
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*
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* In addition to lodash methods, wrappers have `Array` and `String` methods.
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*
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* The wrapper `Array` methods are:
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* `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
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*
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* The wrapper `String` methods are:
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* `replace` and `split`
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*
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* The wrapper methods that support shortcut fusion are:
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* `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
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* `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
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* `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
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*
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* The chainable wrapper methods are:
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* `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
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* `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
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* `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
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* `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
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* `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
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* `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
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* `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
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* `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
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* `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
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* `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
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* `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
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* `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
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* `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
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* `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
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* `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
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* `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
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* `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
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* `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
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* `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
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* `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
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* `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
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* `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
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* `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
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* `zipObject`, `zipObjectDeep`, and `zipWith`
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*
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* The wrapper methods that are **not** chainable by default are:
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* `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
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* `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
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* `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
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* `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
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* `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
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* `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
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* `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
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* `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
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* `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
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* `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
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* `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
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* `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
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* `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
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* `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
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* `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
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* `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
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* `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
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* `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
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* `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
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* `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
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* `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
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* `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
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* `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
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* `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
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* `upperFirst`, `value`, and `words`
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*
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* @name _
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* @constructor
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* @category Seq
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* @param {*} value The value to wrap in a `lodash` instance.
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* @returns {Object} Returns the new `lodash` wrapper instance.
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* @example
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*
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* function square(n) {
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* return n * n;
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* }
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*
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* var wrapped = _([1, 2, 3]);
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*
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* // Returns an unwrapped value.
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* wrapped.reduce(_.add);
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* // => 6
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*
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* // Returns a wrapped value.
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* var squares = wrapped.map(square);
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*
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* _.isArray(squares);
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* // => false
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*
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* _.isArray(squares.value());
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* // => true
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*/
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function lodash(value) {
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if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
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if (value instanceof LodashWrapper) {
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return value;
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}
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if (hasOwnProperty.call(value, '__wrapped__')) {
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return wrapperClone(value);
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}
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}
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return new LodashWrapper(value);
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}
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// Ensure wrappers are instances of `baseLodash`.
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lodash.prototype = baseLodash.prototype;
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lodash.prototype.constructor = lodash;
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module.exports = lodash;
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