小编Ion*_*nic的帖子

我正在使用PDFMake来创建具有预定义文档定义的pdf.在我的旧离子1项目中,我将编码的字符串传递给print函数,该函数工作正常.这是旧离子1的代码

var dd = $scope.createDocumentDefinition();
            $timeout(function () {
                var pdf = pdfMake.createPdf(dd);
                pdf.getBase64(function (encodedString) {
                    console.log(encodedString);
                    $ionicLoading.hide();
                    window.plugins.PrintPDF.print({
                        data: encodedString,
                        type: 'Data',
                        title: 'Print Document',
                        success: function () {
                            console.log('success');
                        },
                        error: function (data) {
                            data = JSON.parse(data);
                            console.log('failed: ' + data.error);
                        }
                    });
                });
            }, 1000);

现在我正在将我的项目升级到Ionic 3,所以我尝试了相同的东西,但输出不同,这是我的新离子3代码.打印机打开但不是根据我的文档定义打印它只打印编码的字符串.

let printer_ = this.printer;
    var dd = this.createDocumentDefinition();
    var pdf = pdfMake.createPdf(dd);
    pdf.getBase64(function (_encodedString) {
      let options: PrintOptions = {
        name: 'MyDocument'
      };
      console.log(JSON.stringify(pdf));
      printer_.print(_encodedString, options).then((msg)=>{
        console.log("Success",msg);
      },(error)  => {
        console.log("Error", …

I am stuck in one RegExp where I need to validate app version for app store and play-store. I have tried several RegExp but none of them is useful for me. Here are the example that pass the test

App version up-to 2-3 decimal point

1.0 // pass

1.0.0 // pass

1.0.0.0 // fail

a.0 // fail

1 // pass

I found one RegExp [0-9]+\.[0-9]+\.[0-9]+\.[0-9]+ but this will only be valid when I have enter 4 decimal points. I don't …