Angular 2 Checkbox Two Way Data Binding

You can remove .selected from saveUsername in your checkbox input since saveUsername is a boolean. Instead of [(ngModel)] use [checked]=”saveUsername” (change)=”saveUsername = !saveUsername” Edit: Correct Solution: Update: Like @newman noticed when ngModel is used in a form it won’t work. However, you should use [ngModelOptions] attribute like (tested in Angular 7): I also created an example at Stackblitz: https://stackblitz.com/edit/angular-abelrm

Document Root PHP

Try this yourself and find that they are not exactly the same. $_SERVER[‘DOCUMENT_ROOT’] renders an actual file path (on my computer running as it’s own server, C:/wamp/www/ HTML’s / renders the root of the server url, in my case, localhost/ But C:/wamp/www/hello.html and localhost/hello.html are in fact the same file

Why is colspan not applied as expected

The widths of cells depend on cell contents, HTML and CSS settings for widths, browser, and possibly phase of the moon. The colspan attribute just specifies how many columns (hence, how many slots in the grid for the table) a cell occupies. If you see the last cell of row 2 as the widest, then the reason … Read more

Is it still valid to use IE=edge,chrome=1?

<meta http-equiv=”X-UA-Compatible” content=”IE=edge,chrome=1″ /> serves two purposes. IE=edge: specifies that IE should run in the highest mode available to that version of IE as opposed to a compatability mode; IE8 can support up to IE8 modes, IE9 can support up to IE9 modes, and so on. chrome=1: specifies that Google Chrome frame should start if the … Read more

Square brackets in CSS

It’s an attribute selector in CSS E[foo=”warning”] Matches any E element whose “foo” attribute value is exactly equal to “warning”. more on http://www.w3.org/TR/CSS2/selector.html