如何在 Javascript 中打印文字 unicode 字符串？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/10937225/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to print literal unicode string in Javascript?
提问by Jér?me Verstrynge
I have an array containing strings with special unicode characters:
我有一个包含带有特殊 unicode 字符的字符串的数组：
var a = [
["a", 33],
["h\u016B", 44],
["s\u00EF", 51],
...
];
When I loop over this array:
当我遍历这个数组时：
for (i=0;i<a.length;i++) {
document.write(a[i][0] + "<br />");
}
It prints characters with accents:
它打印带有重音符号的字符：
a
hù
s?
...
and I want:
而且我要：
a
h\u016B
s\u00EF
...
How can I achieve this in Javascript?
我怎样才能在 Javascript 中实现这一点？
回答by Zeta
Something like this?
像这样的东西？
/* Creates a uppercase hex number with at least length digits from a given number */
function fixedHex(number, length){
var str = number.toString(16).toUpperCase();
while(str.length < length)
str = "0" + str;
return str;
}
/* Creates a unicode literal based on the string */
function unicodeLiteral(str){
var i;
var result = "";
for( i = 0; i < str.length; ++i){
/* You should probably replace this by an isASCII test */
if(str.charCodeAt(i) > 126 || str.charCodeAt(i) < 32)
result += "\u" + fixedHex(str.charCodeAt(i),4);
else
result += str[i];
}
return result;
}
var a = [
["a", 33],
["h\u016B", 44],
["s\u00EF", 51]
];
var i;
for (i=0;i<a.length;i++) {
document.write(unicodeLiteral(a[i][0]) + "<br />");
}
Result
结果
a h\u016B s\u00EF
回答by zeacuss
if you have a unicode char and you want it as a string you can do this
如果你有一个 unicode 字符并且你想要它作为一个字符串，你可以这样做
x = "h\u016B";
// here the unicode is the second char
uniChar = x.charCodeAt(1).toString(16); // 16b
uniChar = uniChar.toUpperCase(); // it is now 16B
uniChar = "\u0" + uniChar; // it is now \u016B
x = x.charAt(0) + uniChar; // x = "h\u016B" which prints as you wish
回答by Dominik
So, gotten here tried to answer this question: Javascript: display unicode as it isbut it has been closed because of this question here.
所以，来到这里试图回答这个问题：Javascript: display unicode as it isbut it has been closed because this question here.
Just another answer for this problem: It is also possible (at least in some modern browsers) to use the String.raw- function
这个问题的另一个答案：也可以（至少在一些现代浏览器中）使用String.raw- 函数
Syntax is like this:
语法是这样的：
var rawStr = String.raw`Hello \u0153`;
Here is a working fiddle (Chrome, FF): http://jsfiddle.net/w9L6qgt6/1/
这是一个工作小提琴（Chrome，FF）：http: //jsfiddle.net/w9L6qgt6/1/
回答by user1417475
javascript's string.charCodeAt()should help. I.e.
javascript的string.charCodeAt()应该有所帮助。IE
"test".charCodeAt(0)will return the numeric code for "t".
"test".charCodeAt(0)将返回 的数字代码"t"。
Beyond that, you'd need to write an if statement to check if the character is non-ASCII, etc.
除此之外，您需要编写一个 if 语句来检查字符是否为非 ASCII 等。
