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[英]How can I make sure my promise from postgres gets resolved before proceding?
[英]How can I make sure that when my ellipsis gets added lastindexof space it also checks its alphabet before it gets added and not special chars
代码如下:
function TrimLength(text, maxLength) {
text = $.trim(text);
if (text.length > maxLength) {
text = text.substring(0, maxLength - ellipsis.length)
return text.substring(0, text.lastIndexOf(" ")) + ellipsis;
}
else
return text;
}
我的问题是它执行以下操作:
hello world and an...
The curse of the gaming backlog –...
我想确保它可以:
hello world and...
The curse of the gaming backlog...
我猜我需要确保有字母字符(例如,a,b,c,d等)并且没有特殊字符。
任何帮助都值得赞赏
您可能要从以下开始:
function cutoff(str, maxLen) {
// no need to cut off
if(str.length <= maxLen) {
return str;
}
// find the cutoff point
var oldPos = pos = 0;
while(pos!==-1 && pos <= maxLen) {
oldPos = pos;
pos = str.indexOf(" ",pos) + 1;
}
if (pos>maxLen) { pos = oldPos; }
// return cut off string with ellipsis
return str.substring(0,pos) + "...";
}
至少给您基于单词而非字母的界限。 如果您需要其他过滤,则可以添加它,但这将为您提供诸如“游戏积压的诅咒– ...”之类的临界值,说实话,这并没有错。
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