Is there a way to access only the $scope elements (variables and functions) created in my controller without getting everything ($$childTail, $$childHead, etc)? I know if I use:
angular.element(document.querySelector('<selector-name>')).scope()
Is there a way to access only the $scope elements (variables and functions) created in my controller without getting everything ($$childTail, $$childHead, etc)? I know if I use:
angular.element(document.querySelector('<selector-name>')).scope()
There is a potential solution that appears to encompass these specific characteristics, involving obtaining the difference between the retrieved scope and its prototype.
Below is an example function that achieves this:
function extractScopeProperties(scope){
var prototype = Object.getPrototypeOf(scope);
var assignedProps = {};
for (var property in scope) {
if (scope.hasOwnProperty(property) && typeof prototype[property] === "undefined") {
assignedProps[property] = scope[property];
}
}
return assignedProps;
}
To apply this function, you can utilize the following code snippet:
var selectedElement = angular.element(document.querySelector('<specific-selector>'));
var assignedProperties = extractScopeProperties(selectedElement.scope());
It should be noted that there may be issues with the $$watchersCount property in Angular version 1.3.15. This anomaly does not appear in versions 1.3.14 or 1.3.16, indicating it was possibly a bug in the 1.3.15 release of AngularJS.
To address this, some may suggest implementing a safeguard against $$watchersCount, but relying on such measures as part of the solution doesn't seem ideal. An alternative approach could involve checking for prop.charAt(0) !== "$" within the inner conditional statement. However, removing properties simply because they begin with $ might be too aggressive, especially considering the possibility that the controller may legitimately assign variables beginning with $.
Need help with accessing user-created properties in AngularJS scope? Check out this previous question.
Unfortunately, Angular does not have a built-in method for isolating only user-defined properties within the $scope object. Converting a $scope object to JSON can also be quite challenging.
One workaround is to create a custom function, like the one below, to parse the $scope object:
var cleanScope = function(scope, includeFunctions) {
// custom JSON.stringify function
function scopeStringify(key, value) {
if (typeof key === 'string' && (key.charAt(0) === '$' || key === 'this')) {
return undefined;
}
return includeFunctions && typeof value === 'function' ? 'function' : value;
}
return angular.fromJson(JSON.stringify(scope, scopeStringify));
};
// Example of usage:
console.log('clean $scope: ', cleanScope($scope));
// To include functions in the output, pass true as the second parameter
console.log('clean $scope: ', cleanScope($scope, true));
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