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Showing posts from January, 2008

Check Typeof Javascript Array Code Example

Example 1: javascript determine array type var data = [ 'a' , 'b' , 'c' ] var isArray = Array . isArray ( data ) console . log ( isArray ) Example 2: javascript test if it is an array // If you want to test if a variable (object) is an instance of // an array. You can use the Array.isArray(varName) method // this method takes one argument, the variable or object you want to test // and returns true, if the argument is an array // or false, if the argument is not an array if ( Array . isArray ( object ) ) { // is true } else { // is false } Array . isArray ( [ 1 , 2 , 3 , 4 ] ) ; // Returns true Array . isArray ( 4 ) ; // returns false // this could be used for flattening an array of arrays Example 3: typeof array const array = [ 'this' , 'is' , 'an' , 'array' ] ; console . log ( typeof array ) ; //object

Arduino Map Float Voltage To Scale 1 To 5 Code Example

Example: map arduino Syntax map ( value , fromLow , fromHigh , toLow , toHigh ) Parameters value : the number to map . fromLow : the lower bound of the value’s current range . fromHigh : the upper bound of the value’s current range . toLow : the lower bound of the value’s target range . toHigh : the upper bound of the value’s target range . Example : map ( val , 0 , 255 , 0 , 1023 ) ;

Blue Purple Gradient Code Example

Example: ui gradient background : #000428 ; /* fallback for old browsers */ background : -webkit-linear-gradient ( to bottom , #000428 , #004e92 ) ; /* Chrome 10-25, Safari 5.1-6 */ background : linear-gradient ( to bottom , #000428 , #004e92 ) ; /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */

Collision2d Unity Code Example

Example 1: unity 2d collision void OnCollisionEnter2D ( Collision2D col ) { Debug . Log ( "Collided with: " + col . gameObject . name ) ; } Example 2: oncollisionenter2d OnCollisionEnter2D ( Collision2D Collider )

Discord Development Portal Code Example

Example 1: discord developer portal discord.com/developers/applications Example 2: discord developer portal the website for this is https://www.discord.com/developers/applications, from there you can access all the developer options on Discord, from APIs to creating Bots for servers etc.

C++ Sizeof Char Array Code Example

Example: how to find the size of a character array in c++ Instead of sizeof ( ) for finding the length of strings or character arrays , just use strlen ( string_name ) with the header file # include <cstring> it's easier .

Android - Can A Device Pretend To Be A USB Keyboard?

Answer : Yes. This is definitely possible, requiring no modifications or drivers on the PC. As the OP mentions, the USB identification on the phone end is ultimately done in software (in this file https://github.com/android/kernel_msm/blob/android-msm-2.6.35/drivers/usb/gadget/composite.c), and it could be modified to identify itself as a standard USB keyboard. This change would require a couple of things. A modified kernel with a patched USB driver An Android app that could talk to some interface exposed by the modified USB driver. There was a paper published a couple of years ago (titled Exploiting smart-phone USB connectivity for fun and profit ) that described using a phone to brute-force desktop login screens. The method they used involved making the phone appear as a USB keyboard. This doesn't exactly answer your question, but it might help in your use case. Maybe you want to have a look at InputStick. It'll be a USB thumb drive that you pair to Android via

Circular Std Font Google Code Example

Example 1: google fonts css Check out the font names and change 'finger paint' to another font name to how different google font appears on webpage . < ! DOCTYPE html > < html > < head > < link href = 'https://fonts.googleapis.com/css?family=Finger Paint' rel = 'stylesheet' > < style > body { font - family : 'Finger Paint' ; font - size : 22 px ; } < / style > < / head > < body > < h1 > Finger Paint < / h1 > < p > Lorem ipsum dolor sit amet , consectetuer adipiscing elit . < / p > < p > 123456790 < / p > < p > ABCDEFGHIJKLMNOPQRSTUVWXYZ < / p > < p > abcdefghijklmnopqrstuvwxyz < / p > < / body > < / html > Example 2: google font import < ! -- To import google font add this to the head of your HTML then you can use use the imported font family in your CSS file -- > < link rel = "

Cmd Shutdown Timer Code Example

Example 1: windows shutdown command timer shutdown -s -t SECONDS Example 2: cmd shutdown # Schedule an automatic shutdown (7200 = seconds) shutdown /s /t 7200 # Cancel Auto Shutdown Schedule shutdown -a Example 3: how to turn off pc at specific time shutdown -s -t < TimeInSeconds > Example 4: cmd timed shutdown shutdown /s /t 3600 #(3600s --> 1h)

Android Notification SetSound Is Not Working

Answer : below code will help you: String CHANNEL_ID="1234"; Uri soundUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://"+ getApplicationContext().getPackageName() + "/" + R.raw.mysound); NotificationManager mNotificationManager = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE); //For API 26+ you need to put some additional code like below: NotificationChannel mChannel; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { mChannel = new NotificationChannel(CHANNEL_ID, Utils.CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH); mChannel.setLightColor(Color.GRAY); mChannel.enableLights(true); mChannel.setDescription(Utils.CHANNEL_SIREN_DESCRIPTION); AudioAttributes audioAttributes = new AudioAttributes.Builder() .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATIO

Ue4 Tarray Iterator Code Example

Example 1: ue4 c++ array TArray < int32 > IntArray ; Example 2: ue4 array copy c++ // Array copy with UE TArray < AActor * > SourceArray ; // copy SourceArray to DestArray TArray < AActor * > DestArray ( SourceArray ) ;

C Power Operator Code Example

Example: c power operator result = ( int ) pow ( ( double ) a , i ) ;

Change Div Text Jquery Code Example

Example 1: jquery change text of div $ ( '#dialog_title_span' ) . text ( "new dialog title" ) ; Example 2: jquery change text $ ( yourElement ) . html ( "New text" ) ; //sets yourElement innerHTML to "New text" var text = $ ( yourElement ) . html ( ) ; //html() returns the text inside yourElement if you pass no parameters Example 3: jquery get element innertext const copiedText = $ ( '#element' ) . text ( ) ; Example 4: change p text jqwuery . text ( "new text" ) Example 5: change inside div with jquery $ ( '.click' ) . click ( function ( ) { // get the contents of the link that was clicked var linkText = $ ( this ) . text ( ) ; // replace the contents of the div with the link text $ ( '#content-container' ) . html ( linkText ) ; // cancel the default action of the link by returning false return false ; } ) ; Example 6: change text of paragraph jquery < !

Best Way To Write JQuery's ReplaceWith() In Natural JavaScript

Answer : var image = document.getElementById('imagefiles'), parent = image.parentNode, tempDiv = document.createElement('div'); tempDiv.innerHTML = "<input type='file' name='imagefiles' id='imagefiles' />" var input = tempDiv.childNodes[0]; parent.replaceChild(input, image); DEMO EDIT as per am not i am: var image = document.getElementById('imagefiles'), parent = image.parentNode, input = document.createElement('input'); input.id = input.name = "imagefiles"; input.type = 'file'; parent.replaceChild(input, image); edited DEMO

Bootstrap Logout Icon Code Example

Example: font awesome logout icons < i class = " icon-signout " > </ i > icon-signout

C++: Store Read Binary File Into Buffer

Answer : I just want to mention that there is a standard way to read from a binary file into a buffer. Using <cstdio> : char buffer[BUFFERSIZE]; FILE * filp = fopen("filename.bin", "rb"); int bytes_read = fread(buffer, sizeof(char), BUFFERSIZE, filp); Using <fstream> : std::ifstream fin("filename.bin", ios::in | ios::binary ); fin.read(buffer, BUFFERSIZE); What you do with the buffer afterwards is all up to you of course. Edit: Full example using <cstdio> #include <cstdio> const int BUFFERSIZE = 4096; int main() { const char * fname = "filename.bin"; FILE* filp = fopen(fname, "rb" ); if (!filp) { printf("Error: could not open file %s\n", fname); return -1; } char * buffer = new char[BUFFERSIZE]; while ( (int bytes = fread(buffer, sizeof(char), BUFFERSIZE, filp)) > 0 ) { // Do something with the bytes, first elements of buffer. // For exa

Android:java.lang.OutOfMemoryError: Failed To Allocate A 23970828 Byte Allocation With 2097152 Free Bytes And 2MB Until OOM

Answer : OutOfMemoryError is the most common problem that occurs in android while especially dealing with bitmaps. This error is thrown by the Java Virtual Machine (JVM) when an object cannot be allocated due to lack of memory space and also, the garbage collector cannot free some space. As mentioned by Aleksey, you can add the below entities in your manifest file android:hardwareAccelerated="false" , android:largeHeap="true" it will work for some environments. <application android:allowBackup="true" android:hardwareAccelerated="false" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:largeHeap="true" android:supportsRtl="true" android:theme="@style/AppTheme"> you should definitely read some of Androids Developer concept's, especially here:Displaying Bitmaps Efficiently Read all 5 topics and rewrite your code again. If it st

How To Print Math.pow(2 31) In C Code Example

Example 1: pow() c int base = 3 ; int power = 5 ; pow ( double ( base ) , double ( power ) ) ; Example 2: pow() c [ Mathematics ] xy = pow ( x , y ) [ In programming ]

Android Shape: Circle With Cross(plus)

Answer : I accomplished something similar (a solid circle with a white plus in the middle) using this drawable xml: <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item> <shape android:shape="oval"> <solid android:color="@color/accent"/> </shape> </item> <item> <shape android:shape="line"> <stroke android:width="5dp" android:color="@android:color/white" /> </shape> </item> <item> <rotate android:fromDegrees="90" android:pivotX="50%" android:pivotY="50%" android:toDegrees="-90"> <shape android:shape="line"> <stroke android:width="5dp&quo