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  • Difference between ngBind, ngBindHtm and ngBindTemplate in Angular JS

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    Difference between ngBind, ngBindHtm and ngBindTemplate in Angular JS

    ng-bind

    ng-bind binds the value of a variable or expression to an HTML element i.e the content of HTML element is replaced with the value of a variable or expression when ng-bind is used.

     

    For e.g:

     

    Within Angular JS Controller when a variable is initialized as follows:

    $scope.firstname = Deepak

    The above variable value can be binded to an HTML element through ng-bind:

    <p ng-bind = firstname></p>

    The above expression will be converted into

        <p>Deepak</p>

     

    But this directive cannot be used to bind values of various variables in a single HTML element.

    For e.g:

     

    Two variables initialized within Angular JS controller:   

    $scope.firstname = Deepak
    $scope.lastname = Negi

    The above two variables if used in single HTML element like

    <p ng-bind = firstname lastname></p>

     

    This expression will only bind the value of first variable used i.e value of firstname and thereby converting the expression into <p>Deepak</p>.

     

    ng-bind-template

    The ng-bind-template directive binds the value of multiple variables to a single HTML element.

     

    For e.g:

    Two variables initialized within Angular JS controller: 

    $scope.firstname = Deepak
    $scope.lastname = Negi

    The above two variables when used in single HTML element with ng-bind-template like

    <p ng-bind-template = firstname lastname></p>

    Then this expression will be converted into <p>Deepak Negi</p> displaying Deepak Negi on screen.

     

    ng-bind-html

    The ng-bind-html directive not only bind values of a single or multiple variables to a single HTML element but also allows rendering of HTML element used as part of value of variable, this HTML tag rendering is not allowed in ng-bind or in ng-bind-template.

     

    For e.g:

     

    Within Angular JS Controller when variables is initialized as follows:

    $scope.firstname = <b>Deepak</b>
    $scope.lastname = <b>Negi</b>

    The above two variables when used within HTML element with ng-bind-html like

    <p ng-bind-html = firstname lastname></p>

    Then this expression will be converted into <p><b>Deepak</b><b> Negi</b></p>, rendering <b> html tag displaying Deepak Negi in bold within a paragraph on screen.

     

    If above variable were used like

    <p ng-bind-template = firstname></p> 

    or

    <p ng-bind = firstname></p>

    Then both will display <b>Deepak</b> on screen not rendering the HTML tag used as part of value of variable.

    Based on above scenarios these three directives can be used according to the requirements.


     

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