Tutorial by Examples: conditional

Perl supports many kinds of conditional statements (statements that are based on boolean results). The most common conditional statements are if-else, unless, and ternary statements. given statements are introduced as a switch-like construct from C-derived languages and are available in versions Per...

propreties { $isOk = $false } # By default the Build task won't run, unless there is a param $true Task Build -precondition { return $isOk } { "Build" } Task Clean { "Clean" } Task default -Depends Build

How to use conditional execution of command lists Any builtin command, expression, or function, as well as any external command or script can be executed conditionally using the &&(and) and ||(or) operators. For example, this will only print the current directory if the cd command was succ...

$ mysqlimport --where="id>2" mycompany employee.txt

jmp a_label ;Jump to a_label jmp bx ;Jump to address in BX jmp WORD [aPointer] ;Jump to address in aPointer jmp 7c0h:0000h ;Jump to segment 7c0h and offset 0000h jmp FAR WORD [aFarPointer] ;Jump to segment:offset...

Based on the state of the flags the CPU can either execute or ignore a jump. An instruction that performs a jump based on the flags falls under the generic name of Jcc - Jump on Condition Code1. Synonyms and terminology In order to improve the readability of the assembly code, Intel defined severa...

The ?= operator is an extension that behaves like =, except that the assignment only occurs if the variable is not already set. x = hello x ?= world # $(x) will yield "hello"

#include <omp.h> #include <stdio.h> int main (void) { int t = (0 == 0); // true value int f = (1 == 0); // false value #pragma omp parallel if (f) { printf ("FALSE: I am thread %d\n", omp_get_thread_num()); } #pragma omp parallel if (t) { printf (&quo...

Use conditional compilation to ensure that code only compiles for the intended instruction set (such as x86). Otherwise code could become invalid if the program is compiled for another architecture, such as ARM processors. #![feature(asm)] // Any valid x86 code is valid for x86_64 as well. Be ca...

IF A = 1 OR 2 THEN perform miracles END-IF IF A = 1 OR 2 AND B = 1 THEN perform rites-of-passage ELSE perform song-and-dance END-IF IF statements can be terminated with full stop or explicit scope terminator END-IF. Use of periods for scope termination is no longer recommend...

Before the Julia 0.5, there is no way to use conditions inside the array comprehensions. But, it is no longer true. In Julia 0.5 we can use the conditions inside conditions like the following: julia> [x^2 for x in 0:9 if x > 5] 4-element Array{Int64,1}: 36 49 64 81 Source of the ...

You can use conditional operators in WordPress to enqueue scripts on specific pages of your Website. function load_script_for_single_post(){ if(is_single()){ wp_enqueue_script( 'some', get_template_directory_uri().'/js/some.js', array...

Python allows you to hack list comprehensions to evaluate conditional expressions. For instance, [value_false, value_true][<conditional-test>] Example: >> n = 16 >> print [10, 20][n <= 15] 10 Here n<=15 returns False (which equates to 0 in Python). So what Python i...

If you want to use the shorthand you can make use of conditional logic with the following shorthand. Only the string 'false' will evaluate to true (2.0). #Done in Powershell 2.0 $boolean = $false; $string = "false"; $emptyString = ""; If($boolean){ # this does not ru...

if and else: it used to check whether the given expression returns true or false and acts as such: if (condition) statement the condition can be any valid C++ expression that returns something that be checked against truth/falsehood for example: if (true) { /* code here */ } // evaluate that ...

Parts of template can be displayed conditionally. If statement is used for this purpose. It's similar to if statement in programing languages. Contents of block are executed/displayed if an expression evaluates to true. {% if enabled == false %} Disabled {% endif %} Disabled will be displ...

Assume that I have a file named in.txt: $ cat in.txt a b a c a d I only want to replace the a\nc with deleted, but not a\nb or a\nd. $ sed -e ':loop # create a branch/label named `loop` $!{ N # append the next line of input into the pattern space /\n$/!b...

P( glasses | reading ) = Count( reading glasses ) / Count( reading ) We count the sequences reading glasses and glasses from corpus and compute the probability.

Since you need to sort & rename the fields, the best option will be the Sort Component in the Data Flow task (like you mentioned) . If you only want to rename columns, then use the "Derived Column" component. The Sort component should look as follows: In my example, you can see the ...

Remove all conditional format in range: Range("A1:A10").FormatConditions.Delete Remove all conditional format in worksheet: Cells.FormatConditions.Delete