I have an array containing strings with special unicode characters:
var a = [
["a", 33],
["h\u016B", 44],
["s\u00EF", 51],
...
];
When I loop over this array:
for (i=0;i<a.length;i++) {
document.write(a[i][0] + "<br />");
}
It prints characters with accents:
a
hù
sô
...
and I want:
a
h\u016B
s\u00EF
...
How can I achieve this in Javascript?
Something like this?
/* 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 />");
}
a h\u016B s\u00EF
if(str.charCodeAt(i) > 127) (ASCII stops at 0x7F).
0x7F is DEL, so 0x7E should be a better upper bound. Edited my answer, thanks for the remark :).
if. Note that '\u0050' and "P" have the same representation; you cannot check whether "P" was originally '\u0050'.So, gotten here tried to answer this question: Javascript: display unicode as it is but it has been closed because of 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
Syntax is like this:
var rawStr = String.raw`Hello \u0153`;
Here is a working fiddle (Chrome, FF): http://jsfiddle.net/w9L6qgt6/1/
if you have a unicode char and you want it as a string you can do this
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
javascript's string.charCodeAt() should help. I.e.
"test".charCodeAt(0) will return the numeric code for "t".
Beyond that, you'd need to write an if statement to check if the character is non-ASCII, etc.
