How to convert "" to null?

For example, a="", how to convert it into a=null, which is used to transfer values ​​​​through the i...

From [AngularJSdiscussion group] 2017-06-17 09:15:40 0  5  959

javascript - A question about ng-bind in angular

{Code...} There is such a piece of code in the project. The span is bound to freezerDoorStatus. Two of the val...

From [AngularJSdiscussion group] 2017-06-17 09:15:39 0  3  877

javascript - How do angularJS instructions expose API to external controllers?

{Code...} I want to expand the menu by clicking a button, but how to expose the menu's API to the button? Or i...

From [AngularJSdiscussion group] 2017-06-17 09:15:37 0  3  1429

javascript - What is this function used for?

I looked at the official website of underscore and it seems that the usage is different.

From [AngularJSdiscussion group] 2017-06-16 09:19:23 0  1  857

javascript - The problem of everything in js being an object

Hello everyone, due to my poor foundation in js, I encountered many basic problems in the project, especially ...

From [AngularJSdiscussion group] 2017-06-16 09:19:22 0  2  843

javascript - What's wrong with passing parameters here?

The interface provided by the background is like this. I can't request the data by writing like this, but I ca...

From [AngularJSdiscussion group] 2017-06-16 09:19:20 0  4  1233

javascript - Customized instructions in ng-bind-html do not take effect!

Problem: Using ng-bind-html, the correct html code has been generated on the page, but the directive in the ta...

From [AngularJSdiscussion group] 2017-06-16 09:19:14 0  1  919

css - How does the grid layout in ionic allow the content in each column with varying text content to be vertically centered?

Each column of data is generated by angular traversal, as shown below: Because the name text on the left is sl...

From [AngularJSdiscussion group] 2017-06-15 09:23:53 0  1  1384

javascript - Both angular and jquery use the $ symbol, will there be any conflict if used together?

For example, $scope.oDiv = $('#box'), the two $ before and after belong to different libraries. . will there b...

From [AngularJSdiscussion group] 2017-06-14 10:50:38 0  6  926

javascript - How to compress angular custom services so that they can be used normally?

How can a custom service be compressed so that it can be used normally? This is a custom service. What is the ...

From [AngularJSdiscussion group] 2017-06-14 10:50:35 0  1  814

angular.js - angular's ui-router, when refreshing, modify the url address

In the routing state (including hash), click the refresh button, and the web page returns to the login interfa...

From [AngularJSdiscussion group] 2017-06-14 10:50:31 0  1  948

javascript - here? What do = and = mean?

(www.sf.gg) is China's leading developer technology community. We hope to provide a pure, high-quality technic...

From [AngularJSdiscussion group] 2017-06-14 10:50:28 0  1  815

angular.js - In angular, how to get the values ​​of radio and checkbox under ng-reprat double-layer loop?

How to get the values ​​of radio and checkbox when an ng-repeat is nested in ng-repeat? The code is as follows...

From [AngularJSdiscussion group] 2017-06-13 09:22:52 0  2  1232

angular.js - What is the selector in the angularjs 4 component used for?

What is the selector in @Component({ selector: 'hero-detail', template: ` <div *ngIf="hero"&a...

From [AngularJSdiscussion group] 2017-06-13 09:22:51 0  1  877

javascript - Angularjs's ng-dialog blocks the pop-up box problem

The pop-up box is generated using ng-dialog. After that, the written message reminder box is buried behind the...

From [AngularJSdiscussion group] 2017-06-13 09:22:49 0  1  831