Glossary Index

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Showing 1–45 of 45 terms.
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45 terms
Namespace
Namespace is a context for identifiers, a logical grouping of names used in a program.
NaN
NaN (Not a Number) is a numeric data type that means an undefined value or value that cannot be represented, especially results of floating-point calculations.
Native
A native application has been compiled to run on the hardware/software environment that comprises the targeted architecture.
Navigator.appVersion
The Navigator.appVersion read-only property of the Navigator interface returns a string representing version information about the browser.
Navigator.clipboard
The clipboard read-only property of the Navigator interface returns a Clipboard object used to read and write the clipboard's contents.
Navigator.onLine
The onLine property of the Navigator interface returns whether the device is connected to the network, with true meaning online and false meaning offline.
Negative Caching
Caching an explicit missing-item or other negative result to avoid repeating the same unsuccessful lookup.
Nginx
Nginx is a web server and reverse proxy commonly used to serve static files and forward PHP requests to PHP-FPM.
Nginx FastCGI Cache
Nginx FastCGI cache stores responses from a FastCGI backend such as PHP-FPM.
Ninja Tables
Ninja Tables is a WordPress table plugin for presenting structured information with configurable display and interaction features.
Node.appendChild()
The appendChild() method of the Node interface adds a node to the end of the list of children of a specified parent node.
Node.js
Node.js is a cross-platform JavaScript runtime environment that allows developers to build server-side and network applications with JavaScript.
Node.removeChild()
The removeChild() method of the Node interface removes a child node from the DOM and returns the removed node.
Node.textContent
The textContent property of the Node interface represents the text content of the node and its descendants.
NodeList.forEach()
The forEach() method of the NodeList interface calls the callback given in parameter once for each value pair in the list, in insertion order.
Non-normative
Software specifications often contain information marked as non-normative or informative, which is provided to help readers understand the specification better, or to show an example or best practice.
Nonce
In cryptography and computer security, a nonce is an arbitrary number that is used only once in a cryptographic communication.
Nonce Reuse
Repeating a cryptographic nonce where uniqueness is required, potentially breaking confidentiality or authentication.
Nonrepeatable Read
An anomaly where rereading a row in one transaction reveals a concurrent committed change or deletion.
Normative
Normative is a word commonly used in software specifications to denote sections that are standardized and must be followed as a rule.
Null
In computer science, a null value represents a reference that points, generally intentionally, to a nonexistent or invalid object or address.
Number
Number values represent floating-point numbers like 37 or -9.25.
Number.EPSILON
The Number.EPSILON static data property represents the difference between 1 and the smallest floating point number greater than 1.
Number.isFinite()
The Number.isFinite() static method determines whether the passed value is a finite number — that is, it checks that a given value is a number, and the number is neither positive Infinity, negative Infinity, nor NaN.
Number.isInteger()
The Number.isInteger() static method determines whether the passed value is an integer.
Number.isNaN()
The Number.isNaN() static method determines whether the passed value is the number value NaN, and returns false if the input is not of the Number type.
Number.isSafeInteger()
The Number.isSafeInteger() static method determines whether the provided value is a number that is a safe integer.
Number.MAX_SAFE_INTEGER
The Number.MAX_SAFE_INTEGER static data property represents the maximum safe integer in JavaScript (253 – 1).
Number.MAX_VALUE
The Number.MAX_VALUE static data property represents the maximum numeric value representable in JavaScript.
Number.MIN_SAFE_INTEGER
The Number.MIN_SAFE_INTEGER static data property represents the minimum safe integer in JavaScript, or -(253 - 1).
Number.MIN_VALUE
The Number.MIN_VALUE static data property represents the smallest positive numeric value representable in JavaScript.
Number.NaN
The Number.NaN static data property represents Not-A-Number, which is equivalent to NaN.
Number.parseFloat()
The Number.parseFloat() static method parses an argument and returns a floating point number.
Number.parseInt()
The Number.parseInt() static method parses a string argument and returns an integer of the specified radix or base.
Number.prototype.toFixed()
The toFixed() method of Number values returns a string representing this number using fixed-point notation with the specified number of decimal places.
Number.prototype.toPrecision()
The toPrecision() method of Number values returns a string representing this number to the specified number of significant digits.