.getcontext is not a function 文心快码 针对你遇到的“.getcontext is not a function”错误,我们可以从以下几个方面进行分析和解答: 确定.getcontext所属的对象或库: .getcontext 并不是一个标准的JavaScript方法,你可能是想使用 .getContext 方法。这个方法属于HTML <canvas> 元素,用于获取该元素的...
问题:在VUE中 如果使用了 tabs 关在tab 中加入了<div>标签;在初始化中 执行echart.init() 可能会 报错:this.dom.getContext is not a function;大致如下所示: <el-tabs> <el-tab-pane> <div> <div style="height: 500px;widows:1000px;" ref="homeLineRef"></div> </div> </el-tab-pane> </...
在JQ中 carvas.getContext('2d'),报错Uncaught TypeError: canvas.getContext is not a function varcanvas = $('canvas');varcontext = canvas.getContext('2d');//改为varcanvas = $('canvas');varcontext = canvas.get(0).getContext('2d');...
Application Type Reactive I am trying to draw a rectangle on a container using JavaScript, however I keep encountering the below error: canvas.getContext is not a function Please see the JavaScript I am using: console.log("START"); var canvas = document.getElementById($parameters.Id); consol...
echarts 画图报错 this.dom.getContext is not a function; 原因:因为在初始化echarts的时候,echarts.js规定只能使用dom原生方法获取标签,即document.getElementById(‘main’); 错误写法: var myCommentLineChart = echarts.init($("#comment-line")); ...
Uncaught TypeError: canvas.getContext is not a function at Array.populateNodes (script.js:95) at Array.Co.call (d3.v3.min.js:3) at gen_graph (script.js:63) at Object.success (main.js:16) at i (jquery.min.js:2) at Object.fireWith [as resolveWith] (jquery.min.js:2) ...
就可以啦 <script type="text/javascript"> var c = document.getElementById("myCanvas");var cxt = c.getContext("2d");cxt.fillStyle="#FF0000";cxt.fillRect(0,0,150,75);//jquery var my=$("#myCanvas");var context=my[0].getContext('2d');context.fillStyle="#FF0000";conte...
ECharts使用：this.dom.getContextisnotafunction ECharts使⽤：this.dom.getContextisnotafunction echarts 画图报错 this.dom.getContext is not a function;原因:因为在初始化echarts的时候，echarts.js规定只能使⽤dom原⽣⽅法获取标签，即document.getElementById('main')；错误写法：var myCommentLine...
ECharts使用:this.dom.getContext is not a function 2019-04-27 13:30 −... 果然朝辉 0 6804 TypeError: Object(…) is not a function 2019-12-18 14:35 −vue中遇到的这个错误 1. 先检查变量名或者函数名是否有重复定义 报这错之后看了好久,也没有发现starkflow上说的,重复定义了变量或者函数 ...
我给<el-card>绑定了ref,利用$refs获取 echarts实例 const echarts1 = echarts.init(this.$refs.echarts1); 结果报错了 解决办法: <el-card style="width: 100%; height: 260px"> <div ref="echarts1" style="height: 260px"></div>