ng2-dnd
Version:
Angular 2 Drag-and-Drop without dependencies
36 lines • 3.01 kB
JavaScript
// Copyright (C) 2016-2020 Sergey Akopkokhyants
// This project is licensed under the terms of the MIT license.
// https://github.com/akserg/ng2-dnd
/**
* Check and return true if an object is type of string
*/
export function isString(obj) {
return typeof obj === "string";
}
/**
* Check and return true if an object not undefined or null
*/
export function isPresent(obj) {
return obj !== undefined && obj !== null;
}
/**
* Check and return true if an object is type of Function
*/
export function isFunction(obj) {
return typeof obj === "function";
}
/**
* Create Image element with specified url string
*/
export function createImage(src) {
let img = new HTMLImageElement();
img.src = src;
return img;
}
/**
* Call the function
*/
export function callFun(fun) {
return fun();
}
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