jshint預期分配錯誤

Question

        // BAR CHART
        if (sparklineType == 'bar') {

                barColor = $this.data('sparkline-bar-color') || $this.css('color') || '#0000f0',
                sparklineHeight = $this.data('sparkline-height') || '26px',
                sparklineBarWidth = $this.data('sparkline-barwidth') || 5,
                sparklineBarSpacing = $this.data('sparkline-barspacing') || 2,
                sparklineNegBarColor = $this.data('sparkline-negbar-color') || '#A90329',
                sparklineStackedColor = $this.data('sparkline-barstacked-color') || ["#A90329", "#0099c6", "#98AA56", "#da532c", "#4490B1", "#6E9461", "#990099", "#B4CAD3"];

            $this.sparkline('html', {
                barColor : barColor,
                type : sparklineType,
                height : sparklineHeight,
                barWidth : sparklineBarWidth,
                barSpacing : sparklineBarSpacing,
                stackedBarColor : sparklineStackedColor,
                negBarColor : sparklineNegBarColor,
                zeroAxis : 'false'
            });

        }

對於上述JSHINT中的代碼，我收到以下錯誤消息：

“預期了一個賦值或函數調用，而是看到了一個表達式”

有人可以告訴我如何解決此問題嗎？

謝謝！

Answer 1

布爾表達式依靠null或未定義的“虛假”來決定是分配$ this.data還是數組文字。 我的猜測是jshint希望您明確分配值，以便您可以明確檢查$ this.data是否為null或undefined，然后進行相應分配。

Answer 2

錯誤（逗號）

barColor = $this.data('sparkline-bar-color') || $this.css('color') || '#0000f0',
sparklineHeight = $this.data('sparkline-height') || '26px',
sparklineBarWidth = $this.data('sparkline-barwidth') || 5,
sparklineBarSpacing = $this.data('sparkline-barspacing') || 2,
sparklineNegBarColor = $this.data('sparkline-negbar-color') || '#A90329',
sparklineStackedColor = $this.data('sparkline-barstacked-color') || ["#A90329", "#0099c6", "#98AA56", "#da532c", "#4490B1", "#6E9461", "#990099", "#B4CAD3"];

試試這個（分號-;）

barColor = $this.data('sparkline-bar-color') || $this.css('color') || '#0000f0';
sparklineHeight = $this.data('sparkline-height') || '26px';
sparklineBarWidth = $this.data('sparkline-barwidth') || 5;
sparklineBarSpacing = $this.data('sparkline-barspacing') || 2;
sparklineNegBarColor = $this.data('sparkline-negbar-color') || '#A90329';
sparklineStackedColor = $this.data('sparkline-barstacked-color') || ["#A90329", "#0099c6", "#98AA56", "#da532c", "#4490B1", "#6E9461", "#990099", "#B4CAD3"];