Javascript 幸运名单失败
我正在尝试制作一个简单的列表框Javascript 幸运名单失败,javascript,node.js,shell,Javascript,Node.js,Shell,我正在尝试制作一个简单的列表框 var blessed = require("blessed"); // Create a screen object. var screen = blessed.screen(); // Create a box perfectly centered horizontally and vertically. var serverList = blessed.list({ align: "center", mouse: true, wi
var blessed = require("blessed");
// Create a screen object.
var screen = blessed.screen();
// Create a box perfectly centered horizontally and vertically.
var serverList = blessed.list({
align: "center",
mouse: true,
width: "50%",
height: "50%",
top: "center",
left: "center",
items: [
"one",
"two",
"three",
"four",
"five",
"six",
"seven",
"eight",
"nine",
"ten"
]
});
// Append our box to the screen.
screen.append(serverList);
serverList.select(0);
// Quit on Escape, q, or Control-C.
screen.key(["escape", "q", "C-c"], function(ch, key) {
return process.exit(0);
});
// Focus our element.
serverList.focus();
// Render the screen.
screen.render();
根据文件,这应该是我所需要的。但它只是错误地说它不能读高。这里是错误
TypeError: Cannot read property 'height' of null
at ScrollableBox.Element._getTop (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:2595:17)
at ScrollableBox.Element._getBottom.parent [as top] (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:2617:15)
at Box.Element._getTop (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:2613:17)
at Box.Element._getBottom.parent [as top] (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:2617:15)
at Screen._focus (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:1439:19)
at Screen.focusPush (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:1389:8)
at Screen.clearRegion [as focused] (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:1467:15)
at ScrollableBox.Node.insert (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:86:25)
at ScrollableBox.Node.append (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:95:8)
at ScrollableBox.List.add.List.addItem.List.appendItem (/home/giodamelio/Projects/real/Vindinium-Bots/node_modules/blessed/lib/widget.js:4262:8)
它看起来像是
中的一个bug。如果您在founded.list()
选项中手动指定parent:screen
,它将起作用。出于某种原因,它不会自动确定父对象
您链接到的测试之所以有效,是因为屏幕上首先添加了其他小部件,这意味着列表肯定会将其父项设置为(先前添加的小部件)。谢谢,我将提交一份报告。