Get system config values in magento 2

How to get data from Magento 2 System Configuration ? Here's how to.

We need to call the default method available.

Just Use \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
In your constructor argument and create an Object $this->scopeConfig = $scopeConfig;

Now to Get the configuration value just use
$this->_scopeConfig->getValue('dev/debug/template_hints', \Magento\Store\Model\ScopeInterface::SCOPE_STORE);

First argument is the value which we need from system configuration and the Second argument is the Store scope.

Demo

public function __construct(
\Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
) {
$this->_scopeConfig = $scopeConfig;
}


public function helloWorld(){

   $showTemplateHint =  $this->_scopeConfig->getValue('dev/debug/template_hints', \Magento\Store\Model\ScopeInterface::SCOPE_STORE);

}