我试图使用postgresql nodejs包在pg中创建以下类型。我编写了一个函数,该函数查询池并尝试创建此类型,如下所示:
return pool.query(
`
CREATE TYPE grade_sheet AS (
subjectName VARCHAR(100),
teacherName VARCHAR(100),
uti VARCHAR(32),
markAllocated REAL CHECK (markAllocated >= 0.0 AND mark
当我尝试将从php传入的bigint转换为nodejs中的整数时,结果总是不同的,我找不出它有什么问题。
> var a = parseInt('135601920000000040', 10);
undefined
> a
135601920000000030
> var a = parseFloat('135601920000000040');
undefined
> a
135601920000000030
> var n = Number('135601920000000040');
undefined
&g
尝试purescript,然后按照"Purescript By示例“一书,我创建了一个JS文件来获取数组的头部:
exports.head = function(arr) {
return arr[0];
};
在purescript中,我为head的类型签名声明了一个新的Undefined数据,以指示数组为空时返回的undefined:
foreign import data Undefined :: Type -> Type
foreign import head :: forall a. Array a -> Undefined a
现在,如何使用Undefine
运行以下Scala代码,编译到Scala-jsVersion0.8.0中,我得到以下错误:
An undefined behavior was detected: undefined is not an instance of java.lang.String
trait MyDataType extends js.Any {
var wordy: String = js.native
}
// This usually comes from the backend.
val dataStruct = js.Dynamic.literal().asInstanceOf[MyDataType
问题:无法提升sails项目(最初为mysql编写,将适配器和设置更改为postgres)
错误:
info: ·• Auto-migrating... (drop)
error: A hook (`orm`) failed to load!
error:
error: error: syntax error at or near "ON"
at Connection.parseE (*/node_modules/pg/lib/connection.js:569:11)
at Connection.parseMessage (*/node_modules/pg/
我有一个包含敲除viewModel的javascript文件。我添加了对剔除调试文件的引用,但是intellisense只在名称空间大括号之外的情况下才能工作:
/// <reference path="knockout-2.0.0.debug.js" />
// YES! I get intellisense here :-)
(function (window, $, ko, undefined) {
// ... lots of js
// NO intellisense in here :-(
})(window, jQuery, ko);
我的命名
我安装了一个npm包,其中包含一个javascript文件,这是我想要使用的。js文件名为all.js,包含以下代码:
import { initExtended } from './extended'
import Header from './components/header/header'
function initAll(options) {
// Set the options to an empty object by default if no options are passed.
options = typeof options !
firebase云函数中的类型记录代码出现错误
TypeError: variations.keys is not a function
代码片段导致错误,给出如下
const currentDoc = await transaction.get(ref)
if (currentDoc !== undefined) {
const variations = currentDoc.get('variation') as Map<string,any>
for (const i of variations.keys()) {
}
firebas