ES6 allows you to use an expression in brackets []. "Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers. So, it can be any string, including '1foo', '!bar! computed property names typescript 名称は "Computed Property Names" という らしい。MDNだと日本語訳で『計算されたプロパティ名』になっている。 https://developer.m… 読者になる ひと夏の技術. I said ‘moo’ to this cow but it didn’t appear to understand. nam e = '美国队长' 使用 [] 添加或修改 属性 … Computed Property Names - Appears supported in Safari … In fact, I was a bit surprised to find this was not already part of JavaScript. 1 min read. update nested object with (ES6) computed property name Tags: javascript, reactjs. const variable = object[property_name] object[property_name] = value; This does the exact same thing as the previous example. How to Set Dynamic Property Keys with ES6 - SamanthaMing.com function rest parameters MDN. Method definitions - JavaScript | MDN computed. To create a computed property, we need to add a computed property to our component object, much like the methods . Follow edited Jan 16, 2016 at 19:43. missing in computed property name - astiempo.org computed property names mdn JavaScript function: get: Computed property names. この動的なプロパティ名、名前を “computed property name” といいます。. setter - JavaScript | MDN Setters are most often used in conjunction with getters to create a type of pseudo-property. ES6's "Computed Property Names" feature allows you to have an expression (a piece of code that results in a single value like a variable or function invocation) be computed as a property name on an object. That allows you to put an expression in brackets [], that will be computed and used as the property name. This is reminiscent of the bracket notation of the property accessor syntax, which you may have used to read and set properties already. Now you can use a similar syntax in object literals, too: Computed Property Names in JavaScript - ui.dev for...of statements ECMAScript 6, MDN. ? In JavaScript, a setter can be used to execute a function whenever a specified property is attempted to be changed.
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