Tag: loops

使用pdf.js时防止同时函数调用？

我使用pdf.js来显示pdf文件，但结果不好，请看看我的代码。 My codes are as follows. var aaa = function (pdf, page_number) { pdf.getPage(page_number).then(function(page) { var scale = 1.5; var viewport = page.getViewport(scale); var canvas = $(‘.pdf-view’)[page_number-1]; var context = canvas.getContext(‘2d’); canvas.height = viewport.height; canvas.width = viewport.width; var renderContext = { canvasContext: context, viewport: viewport }; page.render(renderContext); }); }; for (var i = 1;i < […]