How do I divide a complex string into 3 seperate arrays?
Here's where I am:
I started with an array...cleaned it up using 'regex'. Now I have this...each item has three values- mystring = 4|black|cat, 7|red|dog, 12|blue|fish
Here's where I want to be:
I want to end up with three arrays.- array1=开发者_如何学运维("4","7","12")
- array2=("black","red","blue")
- array3=("cat","dog","fish")
I also want to do this without leaving the page...preferably using javascript
I understand the theory, but I'm getting tangled in the syntax.I'd use John Resig's famous "search and don't replace" method here, it's perfect for it:
var arr1 = [], arr2 = [], arr3 = [],
mystring = "4|black|cat, 7|red|dog, 12|blue|fish";
mystring.replace(/(\d+)\|([^\|]+)\|([^,]+)/g, function ($0, $1, $2, $3) {
arr1.push($1);
arr2.push($2);
arr3.push($3);
});
Example
You want to use the split() method :
var res = mystring.split(','); //will give you an array of three strings
var subres = res[0].split('|'); //will give you an array with [4, black, cat]
//etc...
Like this?:
var values = mystring.split(',');
var arrays = new Array();
for(var i=0; i < values.length; i++) {
var parts = values[i].split('|');
for(var j = 0; j < parts.length;j++) {
if(!arrays[j]) {
arrays[j] = new Array();
}
arrays[j].push(parts[j]);
}
}
Will give you an array that contains those three arrays.
var str = '4|black|cat, 7|red|dog, 12|blue|fish';
var tmp = str.split(',');
var firstArray = Array();
var secondArray = Array();
var thirdArray = Array();
for( var i in tmp ){
var splitted = tmp[i].split('|');
//alert(true);
firstArray[i]=splitted[0];
secondArray[i]=splitted[1];
thirdArray[i]=splitted[2];
}
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