function InnerArraySort(array, length, comparefn) { // In-place QuickSort algorithm. // For short (length <= 22) arrays, insertion sort is used for efficiency. if (!IS_CALLABLE(comparefn)) { comparefn = function (x, y) { if (x === y) return 0; if (%_IsSmi(x) && %_IsSmi(...
if(/0x[0-9a-f]/) {// ~~~// error: This kind of expression is always truthy.}if(x=>0) {// ~~~// error: This kind of expression is always truthy.}functionisValid(value: string | number, options: any, strictness:"strict"|"loose") {if(strictness ==="loose") { value = +...
function foo(arg: unknown) { if (typeof arg === "string") { // We know 'arg' is a string now. console.log(arg.toUpperCase()); } } In this example, we checked whether arg was a string. TypeScript recognized the typeof arg === "string" check, which it considered a type guard...
(variable name first, data type second) and object literals. However, virtually all data typing in TypeScript is optional. The specification describes the data types as “annotations.” If you omit data types (and TypeScript doesn’t infer the data type), data types default to the any type...
in its destructor. You can look for an object by name and optionally type using findChild() or findChildren(). Every object has an objectName() and its class name can be found via the corresponding metaObject() (see QMetaObject::className()). You can determine whether the object's ...
useFpsFunction to monitor the browser's refresh rate (FPS) in real time() => object useMediaQueryFunction to determine if the current environment matches a specified media query condition(mediaQuery: string) => object useResizeObserverFunction to observe changes in the dimensions of DOM elements us...
Employee @JsonObject() export class Employee extends Human { /** The employee's email */ @JsonProperty({required: true}) email: string; /** Predicate function to determine if the property type * is PhoneNumber or a primitive type */ @JsonProperty({ type: property => { if (property ...
Returned only if the node is a directory and descendants option is specified. stat: The fs.lstat or fs.fstat of the node. children: An array of object structured like this one, containing all the children of the node. This is also the structure of the callbacks' first parameter. scan...
The fields inCameraOptionsare all optional because you might want to set just the center or zoom without changing the bearing or pitch. TheLngLattype also makessetCameraliberal in what it accepts: you can pass in a{lng, lat}object, a{lon, lat}object, or a[lng, lat]pair if you’re ...
Object.assign() via object-assign. Promise via promise. fetch() via whatwg-fetch. If you use any other ES6+ features that need runtime support (such as Array.from() or Symbol), make sure you are including the appropriate polyfills manually, or that the browsers you are targeting already ...