Question

我在从文档中学习任何内容时遇到麻烦，如何知道例如.html方法中存在哪些选项？它只是说我可以添加一个选项对象，而没有说这些选项可以是什么。我在这里想念什么？

Answer 1

作为一种可能的查找方法，您可以单击特定方法（Documentation）的源链接以查看代码。在这种情况下，它是：

https://rawgit.com/MrRio/jsPDF/master/docs/modules_html.js.html#line749

这是选项对象可以是的：

options = options || {};
options.callback = options.callback || function () {};
options.html2canvas = options.html2canvas || {};
options.html2canvas.canvas = options.html2canvas.canvas || 
this.canvas;
options.jsPDF = options.jsPDF || this;

Answer 2

在documentation中，您可以看到.html模块后面的代码：

/**
 * Generate a PDF from an HTML element or string using.
 *
 * @name html
 * @function
 * @param {Element|string} source The source element or HTML string.
 * @param {Object=} options An object of optional settings.
 * @description The Plugin needs html2canvas from niklasvh
 */
jsPDFAPI.html = function (src, options) {
    'use strict';

    options = options || {};
    options.callback = options.callback || function () {};
    options.html2canvas = options.html2canvas || {};
    options.html2canvas.canvas = options.html2canvas.canvas || this.canvas;
    options.jsPDF = options.jsPDF || this;
      // Create a new worker with the given options.

    var pdf = options.jsPDF;

    var worker = new Worker(options);
    if (!options.worker) {
    // If worker is not set to true, perform the traditional 'simple' operation.
        return worker.from(src).doCallback();
    } else {
    // Otherwise, return the worker for new Promise-based operation.
        return worker;
    }
    return this;
  };

实际上告诉我可以设置的选项的jsPDF文档？

2 个答案: