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Showing posts from January, 2000

Android Studio Run/Debug Configuration Error: Module Not Specified

Answer : Resync your project gradle files to add the app module through Gradle In the root folder of your project, open the settings.gradle file for editing. Cut line include ':app' from the file. On Android Studio, click on the File Menu, and select Sync Project with Gradle files . After synchronisation, paste back line include ':app' to the settings.gradle file. Re-run Sync Project with Gradle files again. never mind, i changed the name in settings.gradle and synced and then changed it back and synced again and it inexplicably worked this time. Try to delete the app.iml in your project directory and restart android studio

Cognito Temporary Password Expiration Time Code Example

Example: Temporary password has expired and must be reset by an administrator aws cognito-idp admin-create-user --region us-east-1 --user-pool-id us-east-1_youruserpoolid --username theusername --message-action RESEND

Chromedriver For Chrome 87 Code Example

Example: chrome webdriver download Supports Chrome version 88 Resolved issue 3611: getText() output in protractor different from .innerTextResolved issue 3625: Improve element screenshot compatibilityResolved issue 3628: Stale Element Reference and wrong URL reported back with URL having another URL as part of its pathResolved issue 3631: Add support for the `webauthn:extension:largeBlob` capabilityResolved issue 3635: Chromedriver 86 - chromedriver .quit() doesn't seem to pass unload event properlyResolved issue 3649: Copying selected text to clipboard does not work on Windows 10 when using headless modeFor more details, please see the release notes.

Add Primary Key To PostgreSQL Table Only If It Does Not Exist

Answer : Why not include the PK definition inside the CREATE TABLE: CREATE TABLE IF NOT EXISTS mail_app_recipients ( id_draft Integer NOT NULL, id_person Integer NOT NULL, constraint pk_mail_app_recipients primary key (id_draft, id_person) ) You could do something like the following, however it is better to include it in the create table as a_horse_with_no_name suggests. if NOT exists (select constraint_name from information_schema.table_constraints where table_name = 'table_name' and constraint_type = 'PRIMARY KEY') then ALTER TABLE table_name ADD PRIMARY KEY (id); end if; You can try to DROP it before creating it ( DROP has the IF EXISTS clause): ALTER TABLE mail_app_recipients DROP CONSTRAINT IF EXISTS mail_app_recipients_pkey; ALTER TABLE mail_app_recipients ADD CONSTRAINT mail_app_recipients_pkey PRIMARY KEY ("id_draft","id_person"); Note that this require that you give a name to the primary key constraint - in th

Coment Executer Des Touche De Clavier Avec Du Js Code Example

Example: coment executer des touche de clavier avec du js jQuery.event.trigger({ type: 'keydown', which: 77 });

Can I Safely Remove /var/cache?

Answer : From http://www.lindevdoc.org/wiki//var/cache Sorry for the (very) late answer, but I believe it's important to include this bit for future reference. Highlighted the bit which does answer this question. The /var/cache directory contains cached files, i.e. files that were generated and can be re-generated any time, but they are worth storing to save time of recomputing them. Any application can create a file or directory here. It is assumed that files stored here are not critical, so the system can delete the contents of /var/cache either periodically, or when its contents get too large. Any application should take into account that the file stored here can disappear any time, and be ready to recompute its contents (with some time penalty). So yes, you may remove these files without expecting anything bad to happen. No . For one, I believe that /var/cache/bind/ is the default directory where bind9 expects its zone files to be stored (at lea

C Read File Line By Line Into Char Array Code Example

Example: c read lines from text file in to array FILE * fp ; // pointer to file char * file_name ; // file path char cur_char ; char * line = NULL ; // line array size_t len = 0 ; ssize_t read ; int counter = 0 ; //char content[MAX_NUM_LINES][MAX_LINE_LENGTH]; char strArray [ 150 ] [ 150 ] ; if ( optarg == 0 ) { printf ( "File could not be opened." ) ; return ; } // has file argument fp = fopen ( optarg , "r" ) ; if ( fp != NULL ) { while ( ( read = getline ( & line , & len , fp ) ) != - 1 ) // loop thru lines and add them to the strArray { // fgets(line, 100, fp); int i = 0 ; while ( line [ i ] != '\n' ) { // loop thru the characters in the current line strArray [ counter ] [ i ] = line [ i ] ; i ++ ; }

Clone Shopify Store Free Code Example

Example: copy shopify site code and to new store Reference Video : https://www.youtube.com/watch?v=iK9DH5s1WyY

Oracle Substr Instr Code Example

Example 1: oracle substring -- ORACLE substr ( string , start , [ , length ] ) SELECT substr ( 'Hello World' , 4 , 5 ) FROM DUAL ; -- lo Wo SELECT substr ( 'Hello World' , 4 ) FROM DUAL ; -- lo World SELECT substr ( 'Hello World' , - 3 ) FROM DUAL ; -- rld Example 2: Subtr Oracle ? /*Using SUBSTR in Oracle (Example from hackerrank.com): */ /*Simple select query...*/ SELECT DISTINCT city FROM station /*Using WHERE and SUBSTR to find (distinct) cities in station table that begin as well as end with a vowel.*/ WHERE SUBSTR ( city , 1 , 1 ) IN ( 'A' , 'E' , 'I' , 'O' , 'U' ) AND substr ( city , - 1 ) IN ( 'a' , 'e' , 'i' , 'o' , 'u' ) ; /*Parameters for SUBSTR (Substring) in order are as follows: String, Start, Length.*/

Ztring Contains In C++ Code Example

Example: c++ string contains if ( string1 . find ( string2 ) != std :: string :: npos ) { std :: cout << "found!" << '\n' ; }

Int To Char Array Java Code Example

Example 1: java string to char array String str = "example" ; char [ ] ch = str . toCharArray ( ) ; Example 2: int to char java int c = 123 ; String s = Integer . toString ( c ) ; for ( char ch : s . toCharArray ( ) ) System . out . print ( ch + "," ) ; Example 3: convert from integer to character java char a = ( char ) 65 ;

171 Cm To Feet Code Example

Example 1: cm to foot 1 cm = 0.032808399 foot Example 2: cm to foot # 1 cm = 0.0328084 foot # Divide the cm value by 30.48 def cm_to_foot ( cm ) : return cm / 30.48 print ( cm_to_foot ( 1 ) ) # Result- 0.0328084

Arti Dari Meta Charset= Utf-8 Code Example

Example 1: what is meta charset= utf-8 < head > < meta charset = " utf-8 " > <!-- it defines the character encoding , utf-8 stands for unicode transformation format - 8 bits, utf-8 means it will support to display any language --> </ head > Example 2: meta charset= utf-8 meta charset= utf-8

80 Inches To Cm Code Example

Example: inch to cm 1 inch = 2.54 cm

Arduino Sprintf Float Not Formatting

Answer : Due to some performance reasons %f is not included in the Arduino's implementation of sprintf() . A better option would be to use dtostrf() - you convert the floating point value to a C-style string, Method signature looks like: char *dtostrf(double val, signed char width, unsigned char prec, char *s) Use this method to convert it to a C-Style string and then use sprintf, eg: char str_temp[6]; /* 4 is mininum width, 2 is precision; float value is copied onto str_temp*/ dtostrf(temp, 4, 2, str_temp); sprintf(temperature,"%s F", str_temp); You can change the minimum width and precision to match the float you are converting. As has been stated before Float support is not included in sprintf on Arduino. String class Arduino has its own String class. String value = String(3.14); then, char *result = value.c_str(); String class reference, link above Constructs an instance of the String class. There are multiple versions that construct Stri

Void * In C Meaning Code Example

Example 1: what is void in c FUNCTION DECLARATION when void is used as a function return type , it indicates that the function does not return a value . POINTER DECLERATION When void appears in a pointer declaration , it specifies that the pointer is universal . FUNCTION PARAMETER ( IN C ONLY ) When used in a function ' s parameter list , void indicates that the function takes no parameters . Example 2: void c programming FUNCTION DECLARATION when void is used as a function return type , it indicates that the function does not return a value . POINTER DECLERATION When void appears in a pointer declaration , it specifies that the pointer is universal .

Campfire Recipe Minecraft Code Example

Example: can campfires start fires minecraft no, campfires don't start fires

Check If File Exists In S3 Bucket

Answer : If you do aws s3 ls on the actual filename. If the filename exists, the exit code will be 0 and the filename will be displayed, otherwise, the exit code will not be 0: aws s3 ls s3://bucket/filname if [[ $? -ne 0 ]]; then echo "File does not exist" fi first answer is close but in cases where you use -e in shebang, the script will fail which you would most like not want. It is better to use wordcount. So you can use the below command: wordcount=`aws s3 ls s3://${S3_BUCKET_NAME}/${folder}/|grep $${file}|wc -c` echo wordcount=${wordcount} if [[ "${wordcount}" -eq 0 ]]; then do something else do something fi Try the following : aws s3api head-object --bucket ${S3_BUCKET} --key ${S3_KEY} It retrieves the metadata of the object without retrieving the object itself. READ(s3:GetObject) access is required. .

Ajax Add To Cart Button For Product Variation In WooCommerce 3

Answer : To make it work I use a custom ajax add-to-cart for product variations exclusively. 1). I have first changed a bit your button html: <div class="btnss"> <span class="price"> <span class="woocommerce-Price-amount amount">6,999&nbsp; <span class="woocommerce-Price-currencySymbol">kr</span> </span> </span> <div class="quantity buttons_added"> <input type="button" value="-" class="minus"> <label class="screen-reader-text" for="quantity_5b101f605f067">Quantity</label> <input type="number" id="quantity_5b101f605f067" class="input-text qty text" step="1" min="1" max="" name="quantity" value="1" title="Qty" size="4" pattern="[0-9]*" inputm

Code Example

Example 1: create transparent placeholder img from PIL import Image img = Image.new('RGB', (32,32), color='white') img.save('empty.png') quit() Example 2: create transparent placeholder img convert -size 32x32 xc:white empty.jpg

Bootable USB Of Ubuntu Minimal CD

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Answer : How to make an Ubuntu Minimal USB It is possible to make an Ubuntu Minimal USB on either Ubuntu or Windows Subsystem for Linux in Windows 10 using dd . While the minimal iso image is handy, it isn't useful for installing on UEFI-based systems that you want to run in UEFI mode. The mini iso lacks the proper files for booting the computer in UEFI mode. Thus, the computer will boot in BIOS compatibility mode, and the installation will be in BIOS mode. Download the Ubuntu Mini CD iso file for Ubuntu 18.04 and earlier from the link on the Ubuntu Documentation Installation Minimal CD webpage. Download the Ubuntu Mini CD iso file for Ubuntu 20.04 from http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/legacy-images/netboot/mini.iso. Download the file called mini.iso to your Downloads folder. You can download the mini.iso file to wherever on your computer that you want, but download it to your Downloads folder so that you can easily run the commands in