Useful tips for everyday
How to prevent access to certain user roles? Roles vs. Capabilities: As role names can change and as roles are just groups of capabilities, it’s…
What is the difference between if and if else statement? The if statement is a decision-making structure that consists of an expression followed by one…
How to create and associate Salesforce file using APEX? In your class i.e., the controller, send the request to the Model (database) to create ContentVersion…
How do you stencil a PCB? PCB Stencils are manufactured by creating openings through lasers on a stainless steel foil based sheet at the positions…
How is the chi squared distribution an asymptotic property? Asymptotic properties. The chi-squared distribution is obtained as the sum of the squares of k independent,…
Can you do a hypothesis test for standard deviation? A hypothesis test for a population mean when the population standard deviation, σ, is unknown is…
How long can a jet engine run continuously? Large turbofan engines like CF6 are more designed for long range flights, which usually have a duration…
What camera can be used with OpenCV? One of the most widely used webcams for accessing OpenCV. Microsoft’s Lifecam HD-3000 is an older option but…
Why do the blinds have to be up for takeoff and landing? It’s for your own safety. If anything happens during take-off and landing –…
How to remove non-alpha numeric, or non-numeric characters? I’ve been trying to figure out how to remove multiple non-alphanumeric or non-numeric characters, or return only…