(?=^((?!the text that should not be present).)+$)(^the text that should be present$) Here is a Javascript snippet to check that a string does not contain two dashes (–) directly following each other: var regex = /(?=^((?!–).)+$)(^[a-z\-]{1,10}$)/; true === regex.test(‘abc-def’); true === regex.test(‘-abc-def-‘); false === regex.test(‘abc–def’); false === regex.test(‘abc—def’);

So, you’ve decided to start using Microsoft Azure Table Storage. Note that you can use any popular programming language with Azure table storage, not just the well-known .NET languages. Behind the scenes, Azure table storage is just a REST/JSON API. That means, even though Azure is made by Microsoft, it doesn’t mean you have to …

If you’re not sure how to follow the instructions in this post, don’t worry. Feel free to ask a family member, friend or colleague to help you with it. Warning! Danger! Beware! Watch out! Disclaimer: Be prepared to lose your comments, posts, and other information stored about you, regardless of whether it was added to …

Programming languages need an extra syntax operator: a “binary truth operator”. We all know the ternary operator: value = if_this_is_true ? do_this : else_do_this; Let’s look at an example of the ternary operator: firstName = “John” surname = “Doe” age = 40 fullName = firstName + ” ” + surname + (age > 0 ? …