ES6解构函数参数 - 命名根对象 [英] ES6 destructuring function parameter - naming root object
问题描述
在ES5中,我可以这样做(使用继承作为比喻来说明):
// ES5:
var setupParentClass5 = function(options){
textEditor.setup(options.rows,options.columns);
};
var setupChildClass5 = function(options){
rangeSlider.setup(options.minVal,options.maxVal);
setupParentClass5(options); //< =我们传递选项对象UP
};
我使用相同的选项
对象保存多个配置参数。一些参数由父类使用,一些由子类使用。
有没有办法在ES6中使用解构函数参数?
// ES6:
var setupParentClass6 =({rows,columns})=> {
textEditor.setup(rows,columns);
};
var setupChildClass6 =({minVal,maxVal})=> {
rangeSlider.setup(minVal,maxVal);
setupParentClass6(/ * ??? * /); //如何传递根选项对象?
};
或者,我需要提取 setupChildClass6()
,以便它们可以单独传递到 setupParentClass6()
?
code> // ugh。
var setupChildClass6b =({minVal,maxVal,rows,columns})=> {
rangeSlider.setup(minVal,maxVal);
setupParentClass6({rows,columns});
};
我在太多地方有'options'我。我会选择一个额外的代码行。在这个例子中是不值得的,但是在更多的线条上进行解析时,这是一个很好的解决方案。
var setupChildClass6 =(options)=> {
var {minVal,maxVal} = options;
rangeSlider.setup(minVal,maxVal);
setupParentClass6(options);
};
Is there a way to retain the name of a destructured function argument? I.e., the name of the root object?
In ES5, I might do this (using inheritance as a metaphor to make the point):
// ES5:
var setupParentClass5 = function(options) {
textEditor.setup(options.rows, options.columns);
};
var setupChildClass5 = function(options) {
rangeSlider.setup(options.minVal, options.maxVal);
setupParentClass5(options); // <= we pass the options object UP
};
I'm using the same options
object to hold multiple configuration parameters. Some parameters are used by the parent class, and some are used by the subclass.
Is there a way to do this with destructured function arguments in ES6?
// ES6:
var setupParentClass6 = ({rows, columns}) => {
textEditor.setup(rows, columns);
};
var setupChildClass6 = ({minVal, maxVal}) => {
rangeSlider.setup(minVal, maxVal);
setupParentClass6( /* ??? */ ); // how to pass the root options object?
};
Or do I need to extract all of the options in setupChildClass6()
so that they can be individually passed into setupParentClass6()
?
// ugh.
var setupChildClass6b = ({minVal, maxVal, rows, columns}) => {
rangeSlider.setup(minVal, maxVal);
setupParentClass6({rows, columns});
};
I have the 'options' arguments on too many places myself. I would opt for 1 extra line of code. Not worthy in this example, but a good solution when having destructuring on more lines.
var setupChildClass6 = (options) => {
var {minVal, maxVal} = options;
rangeSlider.setup(minVal, maxVal);
setupParentClass6(options);
};
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