functionget(obj, path, fallback =undefined) {returnpath.split('.').reduce((acc, key) =>acc?.[key], obj) ?? fallback;} 15. 分组 根据公共属性对项目列表进行分组。即时分析的魔法。 function groupBy(arr, key) {returnarr...
AI代码解释 varname="The Window";varobject={name:"My Object",getNameFunc:function(){returnfunction
提供如下方法 alert(), 消息提示窗(模态) var boolValue = confirm('xxx'), prompt(arg1,arg2),参数二用于输入默认值 document .getElementById();此外可以通过innerHTML获取和设置中html内容 .getElementsByTagName('div')获取特定的全部标签 .getElementsByClassName('div')返回具有特定的class属性值 history ...
value:function() {} }); Array.prototype.propertyIsEnumerable('demo');//falseObject.getOwnPropertyDescriptor(Array.prototype, 'demo');//{writable: false, enumerable: false, configurable: false}for(variincolors) { console.log(i);//输出:0 1 2}//或者使用 hasOwnPropertyvarcolors = ['red', ...
},function(error){return"Error: Unable to save item with key '"+ key +"' to storage. "+ error; }); }/** * @customfunction * @description Gets value from OfficeRuntime.storage. * @param {any} key Key of item you intend to get. ...
至于为什么for..in在遍历数组时i为字符串?我的理解是如果我们从对象的视角来看待数组的话,实际上它是一个key为下标,value为数组元素值的对象,比如colors数组可以写成下面对象的形式: varcolors = {0:'red',1:'green',2:'blue'} 然后,我们需要访问colors对象中的属性,colors.0这样显然会报语法错识,那么只能使...
If the collapsible element is closed by default, it should have a value of aria-expanded="false". If you've set the collapsible element to be open by default using the in class, set aria-expanded="true" on the control instead. The plugin will automatically toggle this attribute based on...
is called without a name, the name will default todefault. Similarly, if thenameproperty is removed from an instance ofBaseObject, the prototype chain will then be searched and thenameproperty will be retrieved from theprototypeobject where its value is still'default'. So now we get: ...
Provide options specific to a reporter in <key>=<value> format, e.g., --reporter tap --reporter-option tapVersion=13. Not all reporters accept options. Can be specified as a comma-delimited list. # --config <path> New in v6.0.0. ...
版本说明 该套API免费对外开放,目前最新版本为JavaScript API V3.0。 v2.0以前的旧版本已下线,为保证您的使用没有问题,建议采用最新版本进行开发。 ak申请 JavaScript API只支持浏览器类型的ak(自2016年1月15日升级)。请开发者在申请ak时注意选择。 服务配额 ...