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Done / How to make a space printer in javascript

var arg = 5
var string = ' '
for (let i = 0; i < arg; i++) {
console.log('"' + string + '"')
}
I expected the output is:
" " \\ There are 5 spaces between the ""
But the output is:
" "
" "
" "
" "
" "
I am a newbie in javascript. Hope you will help me

you can use method string.padEnd that fill string with blank space until parameter pass to the method
var arg = 5;
var string = ' ';
string = string.padEnd(arg)
console.log('"' + string + '"');
reference : https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd

I don't think there is a way to console.log on the same line. You can do something like this
var arg = 5
var string = ' '
var final_string = ''
for (let i = 0; i < arg; i++)
final_string = final_string + string
}
console.log('"' + final_string + '"')

I think you can use or \xa0 for printing spaces
var arg = 5
var string = '\xa0\xa0\xa0\xa0\xa0';
for (let i = 0; i < arg; i++) {
console.log('"' + string + '"')
}

There are many ways to do this. One would be to do it via a loop. That way you can stay flexible. For loop has already been mentioned. here with a foreach loop.
let string = '';
[...Array(5).keys()].forEach(e => string += ' ');
console.log('"' + string + '"');

Removing random element from an array /Javascript

I googled my question but found no answer, thank you in advance for help. The thing is, I have some code that works ok, but I would like to improve it:
function go(times) {
function pick(n) {
return n[Math.floor(Math.random() * n.length)];
}
var body = ["face", "nose", "hair", "smile"];
var adj = ["amazing", "nice", "beautiful", "perfect"];
var word = ["great", "innocent", "glowing", "adorable"];
var str = "Your " + pick(body) + " looks " + pick(adj) + " and " + pick(word) + "!";
if (times > 0) {
for (i = 0; i < times; i++) {
str = str + " And " + go().toLowerCase();
}
}
return str;
}
When the random word is picked, it should be removed from an array so there won't be any repeation. I can handle it with splice function if I know exact index of element, but when it's random it doesn't work how I want it to.

You can easily add a function to all arrays to return a random value and/or remove one randomly.
// After this, you can call.getRandomValue() on any array!
Array.prototype.getRandomValue = function(removeItem) {
if (this.length < 1) throw "Cannot get random value from zero-length array";
var randomIndex = Math.floor(Math.random() * this.length);
var randomValue = this[randomIndex];
if (removeItem)
this.splice(randomIndex, 1);
return randomValue;
};
function constructDescription(sentenceCount) {
var body = ["face", "nose", "hair", "smile"];
var adj = ["amazing", "nice", "beautiful", "perfect"];
var word = ["great", "innocent", "glowing", "adorable"];
var description = "";
for(var i = 0; i < sentenceCount; i++) {
if (body.length > 0 && adj.length > 0 && word.length > 0) {
description += (description.length > 0) ? " And your " : "Your ";
description += body.getRandomValue(true) + " looks " + adj.getRandomValue(true) + " and " + word.getRandomValue(true) + "!"
}
}
return description;
}
Try it out with a Fiddle here.

Use a different function instead of calling go() recursively in the loop. By calling go() for each phrase you initialize the original arrays each time. Then do the splicing in pick()
function go(times) {
var body = ["face", "nose", "hair", "smile"];
var adj = ["amazing", "nice", "beautiful", "perfect"];
var word = ["great", "innocent", "glowing", "adorable"];
var str = ''
function pick(n) {
var idx = Math.floor(Math.random() * n.length);
var str = n[idx];
n.splice(idx, 1)
return str;
}
function getPhrase(i) {
var phrase = pick(body) + " looks " + pick(adj) + " and " + pick(word) + "!";
return i == 0 ? "Your " + phrase : " And your " + phrase;
}
for (var i = 0; i < times; i++) {
str += getPhrase(i);
}
return str;
}
document.body.innerHTML = go(4);

You just need to combine your splice and your randomizer. example:
function go(times) {
var body = ["face", "nose", "hair", "smile"];
var adj = ["amazing", "nice", "beautiful", "perfect"];
var word = ["great", "innocent", "glowing", "adorable"];
function pick(n) {
return n.splice(Math.floor(Math.random() * n.length), 1);
}
var str = "";
for (var i = 0; i < times; i++) {
str += (i > 0 ? " And your ":"Your ") + pick(body) + " looks " + pick(adj) + " and " + pick(word) + "!";
}
return str;
}

#lucounu solution is absolutely spot on.
In case if you just wanted to improve upon your initial solution , you could have done the following :
var body = ["face", "nose", "hair", "smile"];
var adj = ["amazing", "nice", "beautiful", "perfect"];
var word = ["great", "innocent", "glowing", "adorable"];
function go(times) {
function pick(n) {
var index = Math.floor(Math.random() * n.length)
var randomString = n[index];
n.splice(index,1);
return randomString;
}
var str = "Your " + pick(body) + " looks " + pick(adj) + " and " + pick(word) + "!";
if (times > 0) {
for (i = 0; i < times; i++) {
str = str + " And " + go().toLowerCase();
}
}
return str;
}
console.log(go(2));

Give it a try
var data = ["brain", "mitochondria", "microsope", "beaker", "beaker-2", "scientist", "cell", "atom"];
while (data.length) {
document.write(data.splice(data.length * Math.random() | 0, 1)[0] + '<br>');
}

Trying to make loop exit , but it currently just continues looping for 100 times

I am trying to make so when the looping of 100 hits on the character exits the loop when the life dice rolls to 0. How it currently is is all gets looped 100 times. I am not quite sure how I need to go about solving this, any tips would be helpful. My code is below.
function addChar(fname, lname, speed, agility, wep, outfit, mood) {
this.fname = fname;
this.lname = lname;
this.speed = speed;
this.agility = agility;
this.wep = wep;
this.outfit = outfit;
this.mood = mood;
this.special = function(specialMove) {
specialMove();
}
this.jumpKick = function() {
var jmpkckTimes = Math.floor(Math.random() * (100 - 33 + 1)) + 33;
document.write("He jumpkicks " + jmpkckTimes + " times. ");
if (jmpkckTimes > 70) {
document.write("He enters rage mode! ");
} else {
document.write("He does not have enough kicks for rage mode. ");
}
}
this.hits = function() {
var allHits = Math.floor(Math.random() * (100 - 33 + 1)) + 33;
document.write(" He gets attacked for " + allHits + " HP.");
}
this.lifes = function() {
var life = Math.floor(Math.random() * (3 - 0 + 1)) + 0;
if (life > 0) {
document.write(" The life dice rolls a " + life + ". You have survived! For now...");
} else {
document.write(" The life dice rolls a " + life + ". You have died!");
}
}
}
var myChar = new addChar('Johhny', 'Kicker', 10, 7, 'Ancient Greataxe', 'Barrows', 'angry');
document.write(myChar.fname + " " + myChar.lname + "'s speed is " + myChar.speed + "<br>");
document.write(myChar.fname + " " + myChar.lname + "'s agility is " + myChar.agility + "<br>");
document.write(myChar.fname + " " + myChar.lname + "'s weapon of choice is: " + myChar.wep + "<br>");
document.write(myChar.fname + " " + myChar.lname + " feels " + myChar.mood + "<br>");
document.write(myChar.fname + " " + myChar.lname + " attempts his special: ");
myChar.special(myChar.jumpKick)
for (i = 1; i < 101; i++) {
myChar.hits(myChar.allHits)
myChar.lifes(myChar.lifes)
}
function myOutfit() {
document.getElementById("demo").innerHTML = ("He is wearing " + myChar.outfit)
}
var start = Date.now();
var response = prompt("Do you think my character has what it takes?", "");
var end = Date.now();
var elapsed = (end - start) / 1000;
console.log("You took " + elapsed + " seconds" + " to type: " + response);

You need to have a way to communicate outside of the object, of what is happening inside the object.
For example, when something happens in a function, like lifes() or hits(), you should assign a value to a variable on the object to retain state. That way you can access the state from the for loop.
Example:
this.isAlive = true; // starting condition
this.lifes = function() {
var life = Math.floor(Math.random() * (3 - 0 + 1)) + 0;
this.isAlive = (life > 0);
if (this.alive) {
document.write('you survived');
} else {
document.write('you died');
}
Now in your for loop, you can access isAlive:
// loop until 100 attempts or you die, which ever comes first
for (i = 1; i < 101 && myChar.isAlive; i++) {
myChar.hits(myChar.allHits)
myChar.lifes(myChar.lifes)
}

well in general you can break out of foor loops aswell as prevent further execution of a foor loop and continue the next iteration:
for (var i = 0; i < 10; i++) {
if (i == 4) continue;
if (i == 8) break;
console.log(i);
}
this will basically print: 0, 1, 2, 3, 5, 6, 7
(as you can see it kind of skipped 4)
(it will also work in while / do while loops)
so in your case you could check if the return value of one of your functions is true or false or do some other kind of conditional checking in order to break out of the loop.
or similar to how Rob Brander wrote in his answer:
var maxTurns = 100;
var turns = 0;
while (myChar.isAlive && ++turns <= maxTurns) {
myChar.hits();
myChar.lifes();
}
console.log("character is: " + myChar.isAlive ? "alive" : "dead");
console.log("after: " + turns + " turns.");

When using a for loop in Javascript, how can I display output in multiple columns?

The user should be able to enter in an integer and see the base, squared, and cubed result of that number. The base result should be listed under the "base" header, the squared result should be listed under the "squared" header and the cubed result should be listed under the "cubed" result. However, my output is listed all results under the "base" header. How can I make the results be listed under the related headers? This is what I have:
var $ = function (id) {
return document.getElementById(id);
}
var calculate = function () {
//Get the input from the user and assign it to the userInput variable
var integer = $("integer").value;
var header = "Base" + " " + "Square" + " " + "Cubed" + "\n";
var squared = "";
var cubed = "";
var base = "";
var displayOutput;
for (var i = 1; i <= integer; i++) {
base += i + "\n";
squared += i * i + "\n";
cubed += i * i * i + "\n";
displayOutput = base + squared + cubed;
}
$("output").value = header + displayOutput;
}
var form_reset = function () {
$("output").value = "";
$("integer").value = "";
}
//Assign event handlers to their events
window.onload = function () {
$("powers").onclick = calculate;
$("clear").onclick = form_reset;
}

It all depends on the output. Trying to stay as close as possible to your code, seems you are inserting your resulting displayOutput string into a textarea control. If you want to keep it that way, try tabs (\t) to separate your columns, and only a new line at the end (\n). Also, I noticed you were concatenating every column (base, square, and cubed) on every iteration, so I removed that. Here's the result:
var $ = function (id) {
return document.getElementById(id);
};
var calculate = function () {
//Get the input from the user and assign it to the userInput variable
var integer = $("integer").value;
var header = "Base" + " " + "Square" + " " + "Cubed" + "\n";
var squared = "";
var cubed = "";
var base = "";
var displayOutput = "";
for (var i = 1; i <= integer; i++) {
base = i + "\t";
squared = i * i + "\t";
cubed = i * i * i + "\n";
displayOutput += base + squared + cubed;
}
$("output").value = header + displayOutput;
};
var form_reset = function () {
$("output").value = "";
$("integer").value = "";
};
//Assign event handlers to their events
window.onload = function () {
$("powers").onclick = calculate;
$("clear").onclick = form_reset;
$("theform").onsubmit = function() { return false; };
};

Javascript function - works in IE, not in chrome

To preface this, we are a small organization and this system was built by someone long ago. I am a total novice at javascript so I have trouble doing complicated things, but I will do my best to understand your answers. But unfortunately redoing everything from scratch is not really an option at this point.
We have a system of collecting data where clients use a login to verify a member ID, which the system then uses to pull records from an MS Access database to .ASP/html forms so clients can update their data. One of these pages has the following function that runs on form submit to check that data in fields a/b/c sum to the same total as d/e/f/g/h/i. It does this separately for each column displayed (each column is a record in the database, each a/b/c/d/e/f is a field in the record.)
The problem is with this section of the function:
for (var j=0; j<recCnt; j++) {
sumByType = milesSurf[j] + milesElev[j] + milesUnder[j];
sumByTrack = milesSingle[j] + milesDouble[j] + milesTriple[j] + milesQuad[j] + milesPent[j] + milesSex[j];
etc.
It should use javascript FOR to loop through each record and test to see if they sum to the same thing.
In Firefox and IE this is working properly; the fields sum properly into "sumByType" and "sumByTrack". You can see below I added a little alert to figure out what was going wrong:
alert(sumByType + " " + j + " " + recCnt + " " + milesSurf[j] + " " + milesElev[j] + " " + milesUnder[j]);
In Chrome, that alert tells me that the components of "sumByType" and "sumByTrack" (the various "milesXXXXX" variables) are undefined.
My question is: Why in Chrome is this not working properly, when in IE and FFox it is? Any ideas?
Full function code below:
function submitCheck(formy, recCnt) {
//2/10/03: added milesQuad
//---------------checks Q#4 that Line Mileage by type is the same as by track
var milesElev = new Array();
var milesSurf = new Array();
var milesUnder = new Array();
var milesSingle = new Array();
var milesDouble = new Array();
var milesTriple = new Array();
var milesQuad = new Array();
var milesPent = new Array();
var milesSex = new Array();
var sumByType = 0;
var milesLineTrack = new Array(); //this is for Q5 to compare it to mileage by trackage
var j = 0; var sumByTrack = 0; var liney; var yrOp;
//var str = "document.frm.milesElev" + j;
//alert(str.value);
for (var i in document.frm) {
if (i.substring(0, i.length - 1) == "milesElev") {
milesElev[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length - 1) == "milesSurf") {
milesSurf[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length - 1) == "milesUnder") {
milesUnder[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length - 1) == "milesSingle") {
milesSingle[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length - 1) == "milesDouble") {
milesDouble[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length - 1) == "milesTriple") {
milesTriple[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length - 1) == "milesQuad") {
milesQuad[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length - 1) == "milesPent") {
milesPent[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length - 1) == "milesSex") {
milesSex[parseInt(i.substring(i.length-1, i.length))] = parseFloat(document.frm[i].value); }
if (i.substring(0, i.length -1) == "milesLineTrack") {
milesLineTrack[parseInt(i.substring(i.length-1, i.length))] = document.frm[i].value; } //12/13/02 used to be parseFloat(document.frm[i].value)
if (i.substring(0,5)=="Lines") {
liney = document.frm[i].value;
if (parseInt(liney)<1 || isNaN(liney)) {
alert("Each mode must have at least 1 line. Please correct the value in question #2.");
document.frm[i].select(); return false; }}
if (i.substring(0,8)=="yearOpen") {
yrOp = document.frm[i].value;
if (parseInt(yrOp)<1825 || isNaN(yrOp)) {
alert("Please enter a year after 1825 for question #3");
document.frm[i].select(); return false; }
}
}
for (var j=0; j<recCnt; j++) {
sumByType = milesSurf[j] + milesElev[j] + milesUnder[j];
sumByTrack = milesSingle[j] + milesDouble[j] + milesTriple[j] + milesQuad[j] + milesPent[j] + milesSex[j];
//---------------to round sumByTrack and sumByType from a long decimal to a single decimal place, like frm 7.89999998 to 7.9.
sumByTrack = sumByTrack * 10;
if (sumByTrack != parseInt(sumByTrack)) {
if (sumByTrack - parseInt(sumByTrack) >= .5) {
//round up
sumByTrack = parseInt(sumByTrack) + 1; }
else { //truncate
sumByTrack = parseInt(sumByTrack); }}
sumByTrack = sumByTrack / 10;
sumByType = sumByType * 10;
if (sumByType != parseInt(sumByType)) {
if (sumByType - parseInt(sumByType) >= .5) {
//round up
sumByType = parseInt(sumByType) + 1; }
else { //truncate
sumByType = parseInt(sumByType); }}
sumByType = sumByType / 10;
//-------------end of rounding ---------------------------
if (sumByType != sumByTrack) {
if (isNaN(sumByType)) {
sumByType = "(sum of 4.a., b., and c.) "; }
else {
sumByType = "of " + sumByType; }
if (isNaN(sumByTrack)) {
sumByTrack = "(sum of 4.d., e., f., g., h., and i.) "; }
else {
sumByTrack = "of " + sumByTrack; }
alert("For #4, the 'End-to-End Mileage By Type' " + sumByType + " must equal the 'End-to-end Mileage By Trackage' " + sumByTrack + ".");
alert(sumByType + " " + j + " " + recCnt + " " + milesSurf[j] + " " + milesElev[j] + " " + milesUnder[j]);
return false;
}
//alert (milesLineTrack[j] + " " + milesSingle[j] + " " + 2*milesDouble[j] + " " + 3*milesTriple[j] + " " + 4*milesQuad[j] + " " + 5*milesPent[j] + " " + 6*milesSex[j]);
var singDoubTrip = (milesSingle[j] + 2*milesDouble[j] + 3*milesTriple[j] + 4*milesQuad[j] + 5*milesPent[j] + 6*milesSex[j])
//----------round singDoubTrip to one digit after the decimal point (like from 6.000000001 to 6.0)
singDoubTrip = singDoubTrip * 10;
if (singDoubTrip != parseInt(singDoubTrip)) {
if (singDoubTrip - parseInt(singDoubTrip) >= .5) {
//round up
singDoubTrip = parseInt(singDoubTrip) + 1; }
else { //truncate
singDoubTrip = parseInt(singDoubTrip); }}
singDoubTrip = singDoubTrip / 10;
//----------end round singDoubTrip-----------------------------------------
if (parseFloat(milesLineTrack[j]) != singDoubTrip) {
//var mlt = milesLineTrack[j];
//if isNaN(milesLineTrack[j]) { mlt =
alert("For column #" + (j+1) + ", the mainline passenger track mileage of " + milesLineTrack[j] + " must equal the single track plus 2 times the double track plus 3 times the triple track plus 4 times the quadruple track plus 5 times the quintuple track plus 6 times the sextuple track, which is " + singDoubTrip + ".");
return false;
}
}
//---------------------end of checking Q#4----------------
//return false;
}

I think for (var i in document.frm) is the problem. You should not enumerate a form element, there will be plenty of unexpected properties - see Why is using "for...in" with array iteration a bad idea?, which is especially true for array-like objects. I can't believe this works properly in FF :-)
Use this:
var ele = document.frm.elements; // or even better document.getElementById("frm")
for (var i=0; i<ele.length; i++) {
// use ele[i] to access the element,
// and ele[i].name instead of i where you need the name
}
Also, you should favour a loop over those gazillion of if-statements.