If caused by a click, the clicked element is available as the relatedTarget property of the event. hide.bs.modal This event is fired immediately when the hide instance method has been called. hidden.bs.modal Thi
functiontest(o){vari=0;// i 在整个函数体内均是有定义的if(typeofo=="object"){varj=0;// j 在函数体内是有定义的,不仅仅是在这个代码段内for(vark=0;k<10;k++){// k 在函数体内是有定义的,不仅仅是在循环内console.log(k);// 输出数字 0~9}console.log(k);// k 已经定义了,输出 10}c...
BaseObject=function(name) {if(typeofname !=="undefined") {this.name= name; } };BaseObject.prototype.name='default'; With this version,BaseObjectinherits thenameproperty from itsprototypeobject, where it is set (by default) to'default'. Thus, if the constructor is called without a name,...
All dropdown events have a relatedTarget property, whose value is the toggling anchor element. Event TypeDescription show.bs.dropdown This event fires immediately when the show instance method is called. shown.bs.dropdown This event is fired when the dropdown has been made visible to the user...
typeofnewSet()// Returns object typeoffunction(){}// Returns function Try it Yourself » Note: Thetypeofoperator returns object for all types of objects: objects arrays sets maps You cannot usetypeofto determine if a JavaScript object is an array or a date. ...
JavaScript does not protect the property namehasOwnProperty; thus, if the possibility exists that an object might have a property with this name, it is necessary to use anexternalhasOwnPropertyto get correct results: var foo = { hasOwnProperty: function() { return false; }, bar: 'Here be...
function isEmpty(obj) { for(var prop in obj) { if(obj.hasOwnProperty(prop)) return false; } return true; } In the above code, we will loop through object properties and if an object has at least one property, then it will enter the loop and return false. If the object doesn’t...
Each plugin also exposes its raw constructor on a `Constructor` property: $.fn.popover.Constructor. If you'd like to get a particular plugin instance, retrieve it directly from an element: $('[rel=popover]').data('popover'). No Conflict Sometimes it's neccessary to use bootstrap plugins...
The keys before, after, beforeEach, and afterEach are special-cased, object values are suites, and function values are test-cases: module.exports = { before: function() { // ... }, Array: { '#indexOf()': { 'should return -1 when not present': function() { [1, 2, 3].index...
Testing for scalability is also a crucial factor to consider, especially if you anticipate your project growing over time. Additionally, it’s essential to consider any integrations you may need, such as payment gateways, databases, or APIs, and whether the framework you are considering has the ...