import enquireJs from 'enquire.js'
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export function isDef (v){
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return v !== undefined && v !== null
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}
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/**
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* Remove an item from an array.
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*/
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export function remove (arr, item) {
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if (arr.length) {
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const index = arr.indexOf(item)
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if (index > -1) {
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return arr.splice(index, 1)
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}
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}
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}
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export function isRegExp (v) {
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return _toString.call(v) === '[object RegExp]'
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}
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export function enquireScreen(call) {
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const handler = {
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match: function () {
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call && call(true)
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},
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unmatch: function () {
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call && call(false)
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}
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}
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enquireJs.register('only screen and (max-width: 767.99px)', handler)
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}
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const _toString = Object.prototype.toString
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