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- /**
- * Quick type checking
- * @param {*} element - anything
- * @param {string} type - type definition
- * @returns {boolean} true if the type corresponds
- */
- export function checkType(element, type) {
- return typeof element === type
- }
-
- /**
- * Check if an element is part of an svg
- * @param {HTMLElement} el - element to check
- * @returns {boolean} true if we are in an svg context
- */
- export function isSvg(el) {
- const owner = el.ownerSVGElement
-
- return !!owner || owner === null
- }
-
- /**
- * Check if an element is a template tag
- * @param {HTMLElement} el - element to check
- * @returns {boolean} true if it's a <template>
- */
- export function isTemplate(el) {
- return !isNil(el.content)
- }
-
- /**
- * Check that will be passed if its argument is a function
- * @param {*} value - value to check
- * @returns {boolean} - true if the value is a function
- */
- export function isFunction(value) {
- return checkType(value, 'function')
- }
-
- /**
- * Check if a value is a Boolean
- * @param {*} value - anything
- * @returns {boolean} true only for the value is a boolean
- */
- export function isBoolean(value) {
- return checkType(value, 'boolean')
- }
-
- /**
- * Check if a value is an Object
- * @param {*} value - anything
- * @returns {boolean} true only for the value is an object
- */
- export function isObject(value) {
- return !isNil(value) && checkType(value, 'object')
- }
-
- /**
- * Check if a value is null or undefined
- * @param {*} value - anything
- * @returns {boolean} true only for the 'undefined' and 'null' types
- */
- export function isNil(value) {
- return value === null || value === undefined
- }
-
- /**
- * Detect node js environements
- * @returns {boolean} true if the runtime is node
- */
- export function isNode() {
- return typeof process !== 'undefined'
- }
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