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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                `審查人:李偉` `被審核代碼負責人:張紅橋` `代碼地址:http://192.168.1.170/hyfe/hycharts/blob/master/app/charts/barCharts1.js` ### 存在問題 1.未使用關鍵字定義變量width ~~~ // 多個方法的公用配置 -- 無width var itemStyle var height var grid var linear // 獲取通用配置項 -- line148 width = config.width height = config.height grid = config.grid itemStyle = config.itemStyle ~~~ 2.代碼語句中出現多余引號,**建議去除**: ~~~ //line -- 210 $('' + id + ' .axis-x').find('.tick text').eq(i).text(name) ~~~ 3.比例尺domain()設置不合理,應將定義域最大值設置為**大于數據最大值**,這樣避免繪制出來的圖形高度超過y軸最大值: ![](https://box.kancloud.cn/4b97ddd713926d534837a59664bfcaca_678x375.jpg) 源代碼: ~~~ // 比例尺 linear = d3.scale.linear() .domain([0, d3.max(dataset)]) .range([0, height - grid.y - grid.y2]) ~~~ 建議更改: ~~~ // 比例尺 linear = d3.scale.linear() .domain([0, d3.max(dataset) * 1.2]) .range([0, height - grid.y - grid.y2]) ~~~ ### 優化建議 1.數據中value值已經是Number類型了,此處沒必要再進行數據類型轉換: ~~~ defaultDataSource: function() { return [ { name: "江北區", value: 1140 //已經是Number類型了 } ] }, // 處理數據 for(var i = 0; i < data.length; i++) { dataset.push(parseInt(data[i].value, 10)) //沒必要再進行數據類型轉換 var name = data[i].name xData.push(name) } ~~~ 2.
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