Same as JavaScript, [`isNaN`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isNaN).

    if (isNaN(someObject.someValue)) ...

Or the more modern [`Number.isNaN`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN)

    if (Number.isNaN(someObject.someValue)) ...

Why I didn&#39;t see Auto-Renewable Subscription in iTunes Connect -&gt; In-App Purchases -&gt; Select the In-App Purchase you want to create.

I see only Consumable, Non-Consumable, Non-Renewing Subscription
[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/FUbRQ.png

Why I didn&#39;t see Auto-Renewable Subscription in iTunes Connect

When i updated my android studio today from version 2.2.3 to 2.3 i suddenly got this error in my build.gradle on the first compile line in dependencies

(It doesnt matter which dependencie will be at the first place but it will always give me this error):

&gt; All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 25.2.0, 24.0.0. Examples include com.android.support:animated-vector-drawable:25.2.0 and com.android.support:mediarouter-v7:24.0.0

i have looked through my entire project and i can not find any usage of versions 24.0.0 (I have looked with ctrl + shift + F to search in entire project)

this is my build.gradle:



    android {
        compileSdkVersion 25
        buildToolsVersion &#39;25.0.2&#39;
        useLibrary &#39;org.apache.http.legacy&#39;

        defaultConfig {
            minSdkVersion 16
            targetSdkVersion 25
            versionName &quot;1.0&quot;
            versionCode 1
        }

        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.txt&#39;
            }
            debug {
                minifyEnabled true
                shrinkResources true
            }
        }
        dexOptions {
            javaMaxHeapSize &quot;4g&quot;
        }
    }

    dependencies {
        compile fileTree(include: [&#39;*.jar&#39;], dir: &#39;libs&#39;)
        compile &#39;com.android.support:appcompat-v7:25.2.0&#39;
        compile &#39;com.google.android.gms:play-services:+&#39;
        compile &#39;com.squareup:otto:1.3.8&#39;
        compile &#39;com.mcxiaoke.volley:library-aar:1.0.0&#39;
        compile &#39;com.android.support:multidex:1.0.1&#39;
    }


All com.android.support libraries must use the exact same version

In TypeScript, how can we check if some value is `NaN`?

The following does not work:

    someObject.someValue == NaN
    someObject.someValue === NaN

How to check if value is NaN in Typescript?

In TypeScript, how can we check if some value is <code>NaN</code>?
The following does not work:
<pre><code class="hljs language-ini">someObject.someValue == NaN
someObject.someValue === NaN
</code></pre>

I&#39;m working on a project with Typescript, React and Redux (all running in Electron), and I&#39;ve run into a problem when I&#39;m including one class based component in another and trying to pass parameters between them. Loosely speaking, I&#39;ve got the following structure for the container component:

    class ContainerComponent extends React.Component&lt;any,any&gt; {
      ..
      render() {
        const { propToPass } = this.props;
        ...
        &lt;ChildComponent propToPass={propToPass} /&gt;
        ...
      }
    }
    
    ....
    export default connect(mapStateToProps, mapDispatchToProps)(ContainerComponent);

And the child component:

    interface IChildComponentProps extends React.Props&lt;any&gt; {
      propToPass: any
    }

    class ChildComponent extends React.Component&lt;IChildComponentProps, any&gt; {
      ...
    }
    
    ....
    export default connect(mapStateToProps, mapDispatchToProps)(ChildComponent);

Obviously I&#39;m only including the basics and there is much more to both of these classes but I&#39;m still getting an error when I try and run what looks to me like valid code. The exact error that I&#39;m getting:

&gt;     TS2339: Property &#39;propToPass&#39; does not exist on type &#39;IntrinsicAttributes &amp; IntrinsicClassAttributes&lt;Component&lt;{}, ComponentState&gt;&gt; &amp; Readonly&lt;{ childr...&#39;.

When I first encountered the error I thought it was because I wasn&#39;t passing in an interface defining my props, but I created that (as you can see above) and it still doesn&#39;t work. I&#39;m wondering, is there something I&#39;m missing? 

When I exclude the ChildComponent prop from the code in the ContainerComponent, it renders just fine (aside from my ChildComponent not having a critical prop) but with it in the JSX Typescript refuses to compile it. I think it might have something to do with the connect wrapping based on [this article](http://www.mattgreer.org/articles/typescript-react-and-redux/), but the problems in that article occurred in the index.tsx file and were a problem with the provider, and I&#39;m getting my problems elsewhere.

Typescript + React/Redux: Property &quot;XXX&quot; does not exist on type &#39;IntrinsicAttributes &amp; IntrinsicClassAttributes

I am using [dialog box][1] of angular material2.


 I want to pass data to the opened component. Here is how I am opening dialog box on click of a button

    let dialogRef = this.dialog.open(DialogComponent, {
                disableClose: true,
                data :{&#39;name&#39;:&#39;Sunil&#39;}
            });

On the documentation page there is data property, But I checked MdDialogConfig in my installed packages

    /**
     * Configuration for opening a modal dialog with the MdDialog service.
     */
    export declare class MdDialogConfig {
        viewContainerRef?: ViewContainerRef;
        /** The ARIA role of the dialog element. */
        role?: DialogRole;
        /** Whether the user can use escape or clicking outside to close a modal. */
        disableClose?: boolean;
        /** Width of the dialog. */
        width?: string;
        /** Height of the dialog. */
        height?: string;
        /** Position overrides. */
        position?: DialogPosition;
    }

there is no data property in configuration class.

Now How can I access that passed data?


  [1]: https://material.angular.io/components/component/dialog

How to pass data to dialog of angular material 2

I am working with angular 2 and I have found something like 

    &lt;input #searchBox (keyup)=&quot;search(searchBox.value)&quot;

and it works. 

However, I don&#39;t understand the meaning of **#searchBox**. I haven&#39;t found anything clear neither in the doc.

Could anyone explain to me how it works?

What does Angular 2 hashtags in template mean?

My question is very brief. I am new to TypeScript, been searching around here and there but didn&#39;t find yet an answer.

Does any experienced TypeScripter know if there is a character Type or an easy way to achieve one?

TypeScript character type?

In my Angular2 App I&#39;m importing one component like this:

    import { PersonsSingleAccountComponent} from 
       &#39;../persons-information/fragments/persons-single-account/persons-single-account-bookings/persons-single-account-bookings.component&#39;

It is giving me the lint error &quot;Exceeds maximum line character&quot;. If I try to give the statement in ``(backtick) it is throwing an error.

How can I solve this lint error?

Content Type	Original Author	Original Content on Stackoverflow
Question	ajaysinghdav10d	View Question on Stackoverflow
Solution 1 - Typescript	zeh	View Answer on Stackoverflow

How to check if value is NaN in Typescript?

Typescript Problem Overview

Typescript Solutions

Solution 1 - Typescript

All com.android.support libraries must use the exact same version

Why I didn't see Auto-Renewable Subscription in iTunes Connect

Attributions