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The 6th edition, ECMAScript 6 (ES6) and later renamed to ECMAScript 2015, was finalized in June 2015. [ 4 ] [ 30 ] This update adds significant new syntax for writing complex applications, including class declarations ( class Foo { ...
Ecma's Technical Committee 39 (TC39) is responsible for the maintenance of ECMAScript. [12] New proposals to the language go through a staged process, with each stage representing the completeness of the proposal's specification.
Deprecated patterns that warned in 0.12 no longer work, ref resolution order has changed, Removed properties this._pendingState and this._rootNodeID, Support ES6 classes, Added API React.findDOMNode(component), Support for iterators and immutable-js sequences, Added new features React.addons.createFragment, deprecated React.addons.classSet. 15.0.0
Starting with ES6, the 6th version of the language, variables could be declared with var for function scoped variables, and let or const which are for block level variables. Before ES6, variables could only be declared with a var statement. Values assigned to variables declared with const cannot be changed, but their properties can.
A search engine results page (SERP) is a webpage that is displayed by a search engine in response to a query by a user. The main component of a SERP is the listing of results that are returned by the search engine in response to a keyword query. [1] The results are of two general types: organic search: retrieved by the search engine's algorithm;
Front page of a floppy disk controller data sheet (1979) A datasheet, data sheet, or spec sheet is a document that summarizes the performance and other characteristics of a product, machine, component (e.g., an electronic component), material, subsystem (e.g., a power supply), or software in sufficient detail that allows a buyer to understand what the product is and a design engineer to ...
Delta Air Lines stock popped 10% in early trading Friday after a record air travel year propelled the airline to its best-ever annual revenue total.And Delta CEO Ed Bastian sees that momentum ...
Benchmark results vary between implementations and between themselves. Performance was benchmarked early to be around 91% (i.e., 10% slower) for running code, not including load/instantiation time [ 88 ] or more recently between 100% and 33% of native rates, [ 89 ] and 120% of JavaScript (i.e. 20% faster).