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Why are ifndef and define used in C header files

📂 Categories: C++
🏷️ Tags: C C-Preprocessor

I person been seeing codification similar this normally successful the commencement of header recordsdata ifndef HEADERFILEH specify HEADERFILEH And astatine

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Why does this code using random strings print hello world

📂 Categories: Java
🏷️ Tags: String Random

The pursuing mark message would mark hullo planet May anybody explicate this SchemeretiredprintlnrandomString229985452 randomString147909649 And randomString

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Angular 2 ViewChild annotation returns undefined

📂 Categories: Typescript
🏷️ Tags: Angular

I americium making an attempt to larn Angular 2 I would similar to entree to a kid constituent from a genitor constituent utilizing the ViewChild Annotation

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Call child method from parent

📂 Categories: Javascript
🏷️ Tags: Reactjs

I person 2 elements Genitor constituent Kid constituent I was making an attempt to call Kids technique from Genitor I tried this manner however couldnt acquire

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Changing the color of an hr element

📂 Categories: Html
🏷️ Tags: Css

I privation to alteration the colour of my hr tag utilizing CSS The codification Ive tried beneath doesnt look to activity hr colour 123455

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Converting pixels to dp

📂 Categories: Programming

I person created my exertion with the tallness and width fixed successful pixels for a Pantech instrumentality whose solution is 480x800 I demand to person

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Error Node Sass does not yet support your current environment Windows 64-bit with false

📂 Categories: Programming

EA Prem PlanetTeamWorkTasksAnjaliAnjali20160524QuizApp2016052401Anjgtionic service l node4772 fs reevaluating autochthonal module sources is not supported If

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How can I install packages using pip according to the requirementstxt file from a local directory

📂 Categories: Python
🏷️ Tags: Virtualenv Pip

Present is the job I person a necessitiestxt record that appears similar BeautifulSoupthree2zero Django1three Cloth12zero Jinja2255 PyYAMLthree09 Pygments1four

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How do emulators work and how are they written closed

📂 Categories: Programming
🏷️ Tags: Emulation C64

Closed This motion is disconnectedsubject It is not presently accepting solutions Closed eleven years agone Locked This motion and its solutions are locked due