File Name: es2015 concepts and syntax .zip
- Learn ES2015
- ES6 Tutorial
ECMAScript 6 — syntactic sugar: reduced traditional. ECMAScript 5 — syntactic sugar: reduced traditional. Arrow Functions. Extended Parameter Handling. Spreading of elements of an iterable collection like an array or even a string into both literal elements and individual function parameters. Template Literals. Intuitive expression interpolation for single-line and multi-line strings.
Extended Literals. Enhanced Regular Expression. Keep the matching position sticky between matches and this way support efficient parsing of arbitrary long input strings, even with an arbitrary number of distinct regular expressions. Enhanced Object Properties. Support for method notation in object property definitions, for both regular functions and generator functions.
Destructuring Assignment. Intuitive and flexible destructuring of Arrays into individual variables during assignment.
Intuitive and flexible destructuring of Objects into individual variables during assignment. Intuitive and flexible destructuring of Arrays and Objects into individual parameters during function calls.
Support for mixin-style inheritance by extending from expressions yielding function objects. Unique and immutable data type to be used as an identifier for object properties. Symbol can have an optional description, but for debugging purposes only. Symbol "foo"! Support "iterable" protocol to allow objects to customize their iteration behaviour.
Additionally, support "iterator" protocol to produce sequence of values either finite or infinite. Finally, provide convenient of operator to iterate over all values of an iterable object. Support for generators, a special case of Iterators containing a generator function, where the control flow can be paused and resumed, in order to produce sequence of values either finite or infinite.
Support for generator functions, a special variant of functions where the control flow can be paused and resumed, in order to produce sequence of values either finite or infinite. Support for generator functions, i. Support for generators, a special case of Iterators where the control flow can be paused and resumed, in order to support asynchronous programming in the style of "co-routines" in combination with Promises see below.
See co or Bluebird 's coroutine in practice. Support for generator methods, i. Support for arbitrary byte-based data structures to implement network protocols, cryptography algorithms, file format manipulations, etc. New Built-In Methods. New function for assigning enumerable properties of one or more source objects onto a destination object.
Checking whether an integer number is in the safe range, i. Availability of a standard Epsilon value for more precise comparison of floating point numbers. Truncate a floating point number to its integral part, completely dropping the fractional part.
Determine the sign of a number, including special cases of signed zero and non-number. First class representation of a value that may be made asynchronously and be available in the future. Combine one or more promises into new promises without having to take care of ordering of the underlying asynchronous operations yourself.
Sorting a set of strings and searching within a set of strings. Collation is parameterized by locale and aware of Unicode. Collator "sv" ; l 10 nDE. Format numbers with digit grouping, localized separators and attached currency symbol.
Often we need to represent an idea or concept in our programs — maybe a car engine, a computer file, a router, or a temperature reading. Representing these concepts directly in code comes in two parts: data to represent the state, and functions to represent the behavior. ES6 classes give us a convenient syntax for defining the state and behavior of objects that will represent our concepts. ES6 classes make our code safer by guaranteeing that an initialization function will be called, and they make it easier to define a fixed set of functions that operate on that data and maintain valid state.
Соши кивнула. - Лучше всего - Нетскейп. Сьюзан сжала ее руку. - Давайте скорее. Попробуем порыскать. ГЛАВА 125 - Сколько у нас времени? - крикнул Джабба. Техники в задней части комнаты не откликнулись.
specification. Any discrepancies between this HTML version and the PDF version are unintentional. ECMAScript syntax intentionally resembles Java syntax.
Глаза Сьюзан расширились. - Как прикажете это понимать. На лице Стратмора тут же появилось виноватое выражение.
Ничего похожего. У Халохота был компьютер Монокль, мы и его проверили. Похоже, он не передал ничего хотя бы отдаленно похожего на набор букв и цифр - только список тех, кого ликвидировал. - Черт возьми! - не сдержался Фонтейн, теряя самообладание. - Он должен там .
Колокола на башне Гиральда созывали людей на утреннюю мессу. Этой минуты ждали все жители города. Повсюду в старинных домах отворялись ворота, и люди целыми семьями выходили на улицы.