I have this text file in the same directory with my javascript program:
test.txt
1
2
3
4
5
I want to load the data in array. So at the end i will have a array variable as follow:
[1,2,3,4,5]
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1local as in, on your filesystem or local on your web server that is serving the .js file?Brendan Hannemann– Brendan Hannemann2015-06-19 18:18:34 +00:00Commented Jun 19, 2015 at 18:18
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2Are you using node.js or are you trying to do this in the browser?Mulan– Mulan2015-06-19 18:18:40 +00:00Commented Jun 19, 2015 at 18:18
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1Check this how to read text file in javascriptSergey Maksimenko– Sergey Maksimenko2015-06-19 18:22:17 +00:00Commented Jun 19, 2015 at 18:22
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@SergeyMaksimenko Thank you It work but i take a syntax error in test.txtAntGeorge– AntGeorge2015-06-19 18:55:35 +00:00Commented Jun 19, 2015 at 18:55
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3 Answers
You can use XMLHTTPRequest to load the text from file, like jQuery does, then you can put it something like this:
var array = [];
var xmlhttp;
if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
} else { // code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
var text = xmlhttp.responseText;
// Now convert it into array using regex
array = text.split(/\n|\r/g);
}
}
xmlhttp.open("GET", "test.txt", true);
xmlhttp.send();
this way you will get in array form, the text from test.txt file.
I am assuming test.txt in same folder as script does
1 Comment
Nina Scholz
why not use split with regex direct, instead of replacing line breaks with comma?
try this way
<script>
fs.readFile('test.txt',"utf-8",function(err,data){
if(err) throw err;
var array = Array.from(data) //convert char array
console.log(array)
</script>
Comments
This is your text as a string when you get a text file:
var text = "1\n2\n3\n4\n5";
You need to use String.prototype.split to create an array:
text = text.split("\n");
After you will get an array:
console.log(text); // [1,2,3,4,5]
4 Comments
El cero
Could you tell me, please, what is wrong with this approach? Why you voted against?
AntGeorge
I don't know who voted down but i think because you didn't explain how get a text file as a string.
El cero
Thanks, but nobody asked that.
Francis Barton
yes, the question is about how to read the data in from a local text file. Not how to split an already existing string into an array.
