arr instanceof Array === true; Object.prototype.toString.call(arr) === "[object Array]" 《javascript权威指南》上给出了代码用来判断一个对象是否属于“类数组”。如下: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 // Determine if o is an array-like object. // Strings and functions ...
if(!(isEq(a.keys().next().value, b.keys().next().value, aStack, bStack)))returnfalse; // If the objects are maps deep compare the values. Value equality does not use SameValueZero. if(className ==='[object Map]') { if(!(eq(a.values().next().value, b.values().next()....
Invokes the convertArray JS function with InvokeAsync when selecting a button (Convert Array). After the JS function is called, the passed array is converted into a string. The string is returned to the component for display (text).CallJs1.razor: razor Copy @page "/call-js-1" @inject...
4.7 Use return statements in array method callbacks. It’s ok to omit the return if the function body consists of a single statement returning an expression without side effects, following 8.2. eslint: array-callback-return // good [1, 2, 3].map((x) => { const y = x + 1; ...
("addHandlers"); } } [JSInvokable] public static Task<int[]> ReturnArrayAsync() => Task.FromResult(new int[] { 11, 12, 13 }); async ValueTask IAsyncDisposable.DisposeAsync() { if (module is not null) { try { await module.DisposeAsync(); } catch (JSDisconnectedException) {...
When a function is used to determine the placement, it is called with the tooltip DOM node as its first argument and the triggering element DOM node as its second. The this context is set to the tooltip instance. selector string false If a selector is provided, tooltip objects will be ...
For data attributes, append the option name to data-, as in data-animation="". NameTypeDefaultDescription animation boolean true Apply a CSS fade transition to the tooltip container string | false false Appends the tooltip to a specific element. Example: container: 'body'. This option is ...
If the script has a method called initializeScript, that method is called. The return value from initializeScript is used to determine how to automatically modify the object model of the debugger. The names in the script are bridged to the debugger's namespace. ...
What it means is that an arrow function doesn't create a new this, it grabs it from its surrounding instead.Without arrow function, if you wanted to access a variable from this in a function inside a function, you had to use the that = this or self = this trick....
is-plain-object Returns true if an object was created by the `Object` constructor, or Object.create(null). check is is-object isobject javascript kind kind-of object plain type typeof value trysound •5.0.0•4 years ago•2,571dependents•MITpublished version5.0.0,4 years ago2571depe...