在 TypeScript 中设置 Image Src
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Set Image Src in TypeScript
提问by Luca Trembon
I'm using ionic 2 and want to load a picture during runtime. In the past projects I always did it like this:
我正在使用 ionic 2 并希望在运行时加载图片。在过去的项目中，我总是这样做：
bikeImage.src = "data:image/jpeg;base64," + bikeResult.image;
But it doesn't work in TypeScript.
但它在 TypeScript 中不起作用。
My HTML looks like this.
我的 HTML 看起来像这样。
<img id='bikeImage'/>
It says, that src is a unresolved variable.
它说， src 是一个未解析的变量。
I thought that every JavaScript code works in TypeScript as well. Am I wrong?
我认为每个 JavaScript 代码也适用于 TypeScript。我错了吗？
Does anybody have an idea how to fix this?
有人知道如何解决这个问题吗？
Thanks in advance.
提前致谢。
回答by Nitzan Tomer
You haven't posted how you get element into bikeImage, but it should be:
您还没有发布如何将元素放入bikeImage，但它应该是：
bikeImage = document.getElementById("bikeImage") as HTMLImageElement;
If you don't type assert it to HTMLImageElementthen it will be just an HTMLElementwhich does not have the srcproperty.
如果你不输入 assert 到HTMLImageElement那么它将只是一个没有属性的HTMLElementsrc。
