casting

问题 In swift I can cast an Int to a Double with Int(doubleVariable). But how can I cast a Binding < Double > to a Binding < Int > ? Then I could pass an @Binding var intVar: Int to a function requiring a Double binding. (The context of this is that I have an Int which I want to pass to a Slider in SwiftUI.) 回答1: I don’t think there’s a way to cast but you can create another Binding based on the first one: import SwiftUI var d = 1.0 // Create a Binding<Double> (for lack of another source) var bd =

问题 I am creating an VBA application in Outlook 2016. It analyzes an incoming email and takes its subject line to search for duplicate (or close to duplicate) subject lines. I use a for-each loop to go through a list of Items (which are emails within the inbox) and analyze each one for the criteria. Once a response is required, both the incoming email and the duplicate email are flagged so show that I have already responded to them. I know both Item and olItem should both be Item objects. The

问题 I want to convert string to integer in golang. But I don't know the format of string. For example, "10" -> 10 , "65.0" -> 65 , "xx" -> 0 , "11xx" -> 11, "xx11"->0 I do some searching and find strconv.ParseInt() . But it can not handle "65.0" . So I have to check string's format. Is there a better way? 回答1: I believe function you are looking for is strconv.ParseFloat() see example here But return type of this function is float64. If you don't need fractional part of the number passed as the

问题 I want to convert string to integer in golang. But I don't know the format of string. For example, "10" -> 10 , "65.0" -> 65 , "xx" -> 0 , "11xx" -> 11, "xx11"->0 I do some searching and find strconv.ParseInt() . But it can not handle "65.0" . So I have to check string's format. Is there a better way? 回答1: I believe function you are looking for is strconv.ParseFloat() see example here But return type of this function is float64. If you don't need fractional part of the number passed as the

问题 I want to convert string to integer in golang. But I don't know the format of string. For example, "10" -> 10 , "65.0" -> 65 , "xx" -> 0 , "11xx" -> 11, "xx11"->0 I do some searching and find strconv.ParseInt() . But it can not handle "65.0" . So I have to check string's format. Is there a better way? 回答1: I believe function you are looking for is strconv.ParseFloat() see example here But return type of this function is float64. If you don't need fractional part of the number passed as the

问题 This question already has an answer here : Using System.Type as <T> at runtime when deserializing with Json.Net (1 answer) Closed 8 days ago . Ok i dont even know if the title makes any sense, but i am having difficulty describing what i need to do. So take a look at the example plz. I am doing this: (SportsParent)JsonConvert.DeserializeObject<SportsParent>(jsonObj); But what if i wanted to have the class name "SportsParent" stored in a string, and create a Type object from it. And then use

问题 I have a pyspark df who's schema looks like this root |-- company: struct (nullable = true) | |-- 0: long(nullable = true) | |-- 1: long(nullable = true) | |-- 10: long(nullable = true) | |-- 100: long(nullable = true) | |-- 101: long(nullable = true) | |-- 102: long(nullable = true) | |-- 103: long(nullable = true) | |-- 104: long(nullable = true) | |-- 105: long(nullable = true) | |-- 106: long(nullable = true) | |-- 107: long(nullable = true) | |-- 108: long(nullable = true) | |-- 109:

问题 There is an error on PostgreSQL that it gives on one of my select statements. I searched the web for an answer and came out empty handed. The answer given in another question did not suit my problem. ERROR: failed to find conversion function from unknown to text ********** Error ********** ERROR: failed to find conversion function from unknown to text SQL state: XX000 My query looks something like this: Select * from (select 'string' as Rowname, Data From table) Union all (select 'string2' as

问题 There is an error on PostgreSQL that it gives on one of my select statements. I searched the web for an answer and came out empty handed. The answer given in another question did not suit my problem. ERROR: failed to find conversion function from unknown to text ********** Error ********** ERROR: failed to find conversion function from unknown to text SQL state: XX000 My query looks something like this: Select * from (select 'string' as Rowname, Data From table) Union all (select 'string2' as

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . Improve this question I have an enum enum MYENUM { VAL_1 = 0, VAL_2, VAL_3 }; and two functions that have integer and enum as parameters respectively void MyIntegerFunction(int integerValue) { ... } void MyEnumFUnction(MYENUM enumValue) { ... } I have two variables int intVar = 10;