我下載了一個指令,只接收數字,並有一些額外的選項;但是,它運行後,我收到了rootScope錯誤的認爲是其中一個選項:
<input type="text" ng-model="mynumber" nks-only-number allow-decimal="false" />
我相信假條件是使這個錯誤出現,但我不知道爲什麼。
以下是演示: http://jsfiddle.net/RmDuw/896/
代碼:
(function(){
angular.module('myApp', [])
.directive('nksOnlyNumber', function() {
return {
restrict: 'EA',
require: 'ngModel',
link: function (scope, element, attrs, ngModel) {
scope.$watch(attrs.ngModel, function(newValue, oldValue) {
var spiltArray = String(newValue).split("");
if(attrs.allowNegative == "false") {
if(spiltArray[0] == '-') {
newValue = newValue.replace("-", "");
ngModel.$setViewValue(newValue);
ngModel.$render();
}
}
if(attrs.allowDecimal == "false") {
newValue = parseInt(newValue);
ngModel.$setViewValue(newValue);
ngModel.$render();
}
if(attrs.allowDecimal != "false") {
if(attrs.decimalUpto) {
var n = String(newValue).split(".");
if(n[1]) {
var n2 = n[1].slice(0, attrs.decimalUpto);
newValue = [n[0], n2].join(".");
ngModel.$setViewValue(newValue);
ngModel.$render();
}
}
}
if (spiltArray.length === 0) return;
if (spiltArray.length === 1 && (spiltArray[0] == '-' || spiltArray[0] === '.')) return;
if (spiltArray.length === 2 && newValue === '-.') return;
/*Check it is number or not.*/
if (isNaN(newValue)) {
ngModel.$setViewValue(oldValue || '');
ngModel.$render();
}
});
}
};
});
}());
您的JSFiddle與您在這裏發佈的代碼不太相似......這是正確的嗎? – Sam
是一樣的,我剛剛在這裏顯示代碼directlly – Pedro