I have a dynamically generated Array:
myArr = ["val0a", "val1a", "val2a"... "val600a"]
I am having problems appending a new array values to this array in a loop. My Array should look like this after the append:
myArr = ["val0a", "val1a val1b", "val2a val2b"... "val600a"]
Please note that the new array and the old one do not have the same length.
How can I do this? It have to be something simple but I can't figure it out.
You can write a function along the lines of this:
Array.prototype.appendStringToElementAtIndex = function(index, str) {
if(typeof this[index] === 'undefined' || typeof this[index] !== 'string') return false;
this[index] += ' ' + str;
};
myArr = ["val0a", "val1a", "val2a"];
myArr.appendStringToElementAtIndex(1, "val1b");
console.log(myArr.join(', ')); //val0a, val1a val1b, val2a
myArr.push(myArr[myArr.length - 1].split(" ").push("val42").join(" ")); // even
to append a value to an element of an array you can just do this:
myArr = ["val0a", "val1a", "val2a"... "val600a"];
indexToAppendTo = 2;
val2 = "val2b"
myArr[ indexToAppendTo ] += (" " + val2) ;
To concatenate to an element that's a string:
myArr[2] = myArr[2] += 'blah';
To reassign it:
myArr[2] = 'foo';
