Tutorial by Examples: co

It is a common practice to set application variables to an object scope. This keeps them easy to identify and distinguish from variables in other scopes. The Variables scope in a CFC is private to the CFC. When you set variables in this scope, they cannot be seen by pages that invoke the CFC. <...

pie view - (void)drawRect:(CGRect)rect { NSArray *data = @[@30, @15, @5, @17, @3, @10, @20]; // 1. context CGContextRef cxtRef = UIGraphicsGetCurrentContext(); CGPoint center = CGPointMake(150, 150); CGFloat radius = 150; __block CGFloat startAngle = 0; ...

The using of net.sf.jasperreports.export.xls.auto.filter property allow to add autofilter in generated xls file. <columnHeader> <band height="30" splitType="Stretch"> <staticText> <reportElement x="0" y="0" widt...

The modifier that allows using whitespace inside some parts of the pattern to format it for better readability and to allow comments starting with #: /(?x)^ # start of string (?=\D*\d) # the string should contain at least 1 digit (?!\d+$) # the string cannot consist of digi...

The UNICODE modifier, usually expressed as u (PHP, Python) or U (Java), makes the regex engine treat the pattern and the input string as Unicode strings and patterns, make the pattern shorthand classes like \w, \d, \s, etc. Unicode-aware. /\A\p{L}+\z/u is a PHP regex to match strings that consis...

filePath = "file.csv" data = np.genfromtxt(filePath) Many options are supported, see official documentation for full list: data = np.genfromtxt(filePath, dtype='float', delimiter=';', skip_header=1, usecols=(0,1,3) )

Searching git log using some string in log: git log [options] --grep "search_string" Example: git log --all --grep "removed file" Will search for removed file string in all logs in all branches. Starting from git 2.4+, the search can be inverted using the --invert-grep...

Merges two collections (without removing duplicates) List<int> foo = new List<int> { 1, 2, 3 }; List<int> bar = new List<int> { 3, 4, 5 }; // Through Enumerable static class var result = Enumerable.Concat(foo, bar).ToList(); // 1,2,3,3,4,5 // Through extension method...

Here we will be checking out the latest copy of our project's code, run the tests and will make the application live.To achieve that, follow below steps: Open Jenkins in browser. Click the New Job link. Enter project name and select the Build a free-style software project link. Click on Ok but...

Information about the database connections SELECT a.mon$attachment_id as Attachment_ID, a.mon$server_pid as Server_PID, case a.mon$state when 1 then 'active' when 0 then 'idle' end as State, a.mon$attachment_name as Database_Name, ...

Darken #demo { @refcolor: #f0b9b8; background: @refcolor; border: 1px solid darken(@refcolor, 25%); } The above code makes use of the darken() function to set the border color as a shade that is 25% darker than the reference color (which is also the background color). Less compiler ca...

lessc [options] <source> [destination] The above command is used to compile Less files in the command line. Options are the various settings that the compiler should use either during compilation or after compilation. Options include -x or --compress for compressing or minifying the output ...

Print out all list names and the item count. $site = Get-SPSite -Identity https://mysharepointsite/sites/test foreach ($web in $site.AllWebs) { foreach ($list in $web.Lists) { # Prints list title and item count Write-Output "$($list.Title), Items: $($list.ItemCoun...

Get-SPFeature -Site https://mysharepointsite/sites/test Get-SPFeature can also be run on web scope (-Web <WebUrl>), farm scope (-Farm) and web application scope (-WebApplication <WebAppUrl>). Get all orphaned features on a site collection Another usage of Get-SPFeature can be to find ...

Suppose that you had started an interactive rebase: git rebase --interactive HEAD~20 and by mistake, you squashed or dropped some commits that you didn't want to lose, but then completed the rebase. To recover, do git reflog, and you might see some output like this: aaaaaaa HEAD@{0} rebase -i (...

If we have a Model as following, from django.db import models from django.contrib.auth.models import User class UserModuleProfile(models.Model): user = models.OneToOneField(User) expired = models.DateTimeField() admin = models.BooleanField(default=False) employee_id = models...

Import the class, which contains the method to be tested. Perform the operation with dummy data. Now compare the result of operation with expected result. - (void)testReverseString{ NSString *originalString = @"hi_my_name_is_siddharth"; NSString *reversedString = [self.someObject ...

- (void)testDoSomethingThatTakesSomeTime{ XCTestExpectation *completionExpectation = [self expectationWithDescription:@"Long method"]; [self.someObject doSomethingThatTakesSomeTimesWithCompletionBlock:^(NSString *result) { XCTAssertEqualObjects(@"result", result, @"Re...

1. For Synchronous methods : - (void)testPerformanceReverseString { NSString *originalString = @"hi_my_name_is_siddharth"; [self measureBlock:^{ [self.someObject reverseString:originalString]; }]; } 2. For Asynchronous methods : - (void)testPerformanceOfAsynch...

psycopg2 is the most popular PostgreSQL database adapter that is both lightweight and efficient. It is the current implementation of the PostgreSQL adapter. Its main features are the complete implementation of the Python DB API 2.0 specification and the thread safety (several threads can share t...