How to make a function for: document.write(" ")

Question

Hi I want to shorten this: document.write("").

Instead i made my function:

function myFunc() {
    document.write()
}

and I want that ill be able to modify it like this: myFunc("hello world") but it did not work.

the reson why I wanted to do this so I shouldnt have to write out the whole thing (document.write) — mendel goldstein, Apr 01 '15 at 18:32
Aside from not having any arguments, how did your function "not work"? — j08691, Apr 01 '15 at 18:32
Looking at your snippet, it seems that you forgot to use a param to pass the text to the `document.write()` function, is that right? — DontVoteMeDown, Apr 01 '15 at 18:35
never mind! just tell me if that is the correct way how to do it, if it not then please tell me! — mendel goldstein, Apr 01 '15 at 18:36
Anyway, if it was my function and I want to shorten its name you would surely use `dw()`, but its your call... — DontVoteMeDown, Apr 01 '15 at 18:38
Notice, that you can use your function at parsing time only. If it's called after a page has been parsed, it'll wipe out all the code on the page and create a new document. — Teemu, Apr 01 '15 at 18:39
If you want to learn how functions work, I recommend to [read a tutorial about functions in JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Functions). — Felix Kling, Apr 01 '15 at 20:18

score 1 · Answer 1 · answered Apr 01 '15 at 18:36

1

Your function needs to take an argument. Right now, you're trying to pass it one, but it doesn't take any, then you call document.write() with no arguments, so it doesn't write anything. You can add a parameter like this:

function myFunc(s)
{
    document.write(s);
}

answered Apr 01 '15 at 18:36

KSFT

1,774
11
17

ok, so lets say I want a function and when ever I call it I want to specify the string (what i want it to say on the web) with the parameters.. – mendel goldstein Apr 01 '15 at 18:42
like this: myFunc(hello world) - it should show on page "hello world" – mendel goldstein Apr 01 '15 at 18:43
@mendel goldstein Guess you could try `myFunc("hello world");` ... but to you question 'how do I do it?' ... Do what? What exactly are you trying to accomplish? – yas Apr 01 '15 at 18:59
@dave I'm trying to create an output for my js on the webpage instead of using the alert function – mendel goldstein Apr 01 '15 at 19:06
If this is for debugging, you may want to look at: http://stackoverflow.com/questions/4539253/what-is-console-log. If not for debugging purpose, you can use DOM methods to insert or update element content dynamically, see http://stackoverflow.com/questions/11907053/how-do-i-add-something-to-my-html-using-javascript-without-erasing-the-whole-pag – yas Apr 01 '15 at 19:08

How to make a function for: document.write(" ")

1 Answers1