Language

Evaluates a condition and runs code if it is true. The condition uses standard JavaScript truthiness: false, 0, NaN, "" (empty text), null…

For use in if statements, runs code statement or block if criteria evaluates to "false".

Declares a function. Functions are closures (they keep access to the variables where they were defined), and parameters can have default…

Ends the current function and returns a value to the caller. A bare return; returns undefined.

Ends the current for, for…of, for…in, while or do…while loop, or a switch statement, and continues with the code after it.

Skips the rest of the current iteration of a loop (for, for…of, for…in, while, do…while) and continues with the next iteration.

The typeof operator returns a string describing the type of the value.

Runs the code after the case that matches a value — a more readable alternative to a series of if/else statements. HashJS rules: - Each…

Imports exported functions and values from another JavaScript file (a module), so they can be used in the current file. Supported forms: -…

Runs a block of code and catches errors with catch. An optional finally block runs whatever the outcome. The catch variable holds exactly…

Returns the names of an object's own properties. Works for object literals, JSON data from documents, and Docly objects such as request.…

Returns an object's own properties as [key, value] pairs, in the same order as Object.keys(). Works for object literals, JSON data from…