Tutorial by Topics: n

ParameterDetailsexprIn case the "try part" was completed successfully tryCatch will return the last evaluated expression. Hence, the actual value being returned in case everything went well and there is no condition (i.e. a warning or an error) is the return value of readLines. Note that ...

Why is there a GIL? The GIL has been around in CPython since the inception of Python threads, in 1992. It's designed to ensure thread safety of running python code. Python interpreters written with a GIL prevent multiple native threads from executing Python bytecodes at once. This makes it e...

AutoHotkey used to heavily rely on labels until version 1.1.20. It's reliance on labels had very serious disadvantages. The main one being that labels usually execute in the global scope meaning that any variable defined within a label will be globally available. This sounds great until you realiz...

Dictionaries in Tcl are values that hold a mapping from arbitrary values to other arbitrary values. They were introduced in Tcl 8.5, though there are limited versions for (the now unsupported) Tcl 8.4. Dictionaries are syntactically the same as lists with even numbers of elements; the first pair o...

No matter what linter you choose every JavaScript Project should use one. They can help find error and make code more consistent. For more comparisions check out comparison JavaScript linting tools

NullReferenceException is thrown whenever a variable is empty and one of its method/properties are referenced. To avoid this, be sure all variables are initialized correctly (new operator), and all methods returns a non-null value.

NLTK is a leading platform for building Python programs to work with human language data. It provides easy-to-use interfaces to over 50 corpora and lexical resources such as WordNet, along with a suite of text processing libraries for classification, tokenization, stemming, tagging, parsing, and s...

ParamenterDescriptionactionIt must be an object with at least the type property. Any other property can be passed and will be accessible within the reducer function. If you're not using bundlers like Webpack and Browserify, change the first line to: const { createStore } = Redux; Or just call...

Crystal Reports is designed for presenting database information in the form of reports - visualized lists, summaries, or charts depicting data from tables in a useful RPT format. Reports are drafted in the graphically-orientated Design view, representing form objects like text or shapes as indivi...

Using django-redis-cache or django-redis are both effective solutions for storing all cached items. While it is certainly possible for Redis to be setup directly as a SESSION_ENGINE, one effective strategy is to setup the caching (as above) and declare your default cache as a SESSION_ENGINE. While...

Java comes with a powerful and flexible mechanism for localizing your applications, but it's also easy to misuse and wind up with a program that disregards or mangles the user's locale, and therefore how they expect your program to behave. Your users will expect to see data localized to the form...