const value= injector.get('key'); console.log(value);//'hello world' 看到吗,上面代码中,完全没有 class 的影子,但 injector 照常工作。 抽象理解 provider 和 injector provider 的特性 class 是一种 provider,但 provider 不仅仅只限于 class。 抽象的看,provider 是一个 key value pair 对象。 key 的...
透过activatedRoute queryParams 可以获取所有的 key value,这个无法透过 input 的方式获取,所以有时候还是老方法要强一些。 使用queryParamMap.keys 也可以拿到所有的 keys,然后再透过 for loop keys + queryParamMap.get 获取 value。 const activatedRoute =inject(ActivatedRoute); const keys=activatedRoute.snapshot.qu...
function isString(value){return typeof value == 'string';} function isNumber(value){return typeof value == 'number';} function isDate(value){ return toString.apply(value) == '[object Date]'; } function isArray(value) { return toString.apply(value) == '[object Array]'; } function i...
payloadis an object literal of key-value pairs that you would like to encode within your token. This information can then be decoded from the token by anybody that has the decryption key. In our example, we encode theuser.idso that when we receive the token again on the back end for au...
if (values && values.constructor == Array) { let queryValues = []; for (let i = 0, len = values.length, value; i < len; i++) { value = values[i]; queryValues.push(this.toQueryPair(key, value)); } result = result.concat(queryValues); ...
setItem(key/Array<key>, value/Array<value>): stores data (async, promise) getItem(key/Array<key>, rejectIfNull): retrieves stored data, rejects if rejectIfNull is truthy and one of the values is null (async, promise)localForage will return null for a lookup on a key that does not ex...
[key]);//输出"值" } 2、for in 对数组迭代 for(index in list){ //index是数组对应的序号 console.log(list[index]);/.../输出"值" } 3、for of 对数组迭代 for(value of list){ console.log(value)//输出数组对应的值 } --- 事件监听 HTML DOM 事件大全...
Since it is mutable, this value must not be used to make authorization decisions. It can be used for username hints, however, and in human-readable UI as a username. The profile scope is required in order to receive this claim.', claimsTable ); break; case 'nonce': populate...
It can be FormControl, FormGroup or FormArray.The function must validate the control value and return ValidationErrors if any errors are found otherwise null. It must return them as observable. The ValidationErrors is a key-value pair object of type [key: string]: any and it defines the ...
Thecc-typeproperty is optional and may be a single card type or an array of types. If its value is defined on the scope, the card number will be checked against the type(s) in addition to the Luhh algorithm. A special validity key—ccNumberType—indicates whether the card matched the ...