In the following javascript function window.setInterval(function,milliseconds) I can do the following:
var myvarible = function(){alert('Popup');};
window.setInterval(myvarible,5000);
now every 5 seconds my webpage will alert the message 'popup'
How can I make my own function do the parameter myvarible, as see above? This is what I am trying below, but it does not work.
text = "";
var myvarible = function() {
for (i = 0; i < cars.length; i++) {
text += cars[i] + "<br>";
}
}
function howLong(the_function){
var starting_time = new Date().getMilliseconds();
the_function //do the function here
var finishing_time = new Date().getMilliseconds();
var difference = finishing_time-starting_time;
document.write(difference);
}
howLong(myVarible); //call my howLong function
I hope you understand me, I have tried to make myself as clear as possible and I am new to javascript so please try to keep the answers as simple as possible.
Thanks for your help
Put () after the variable to call it as a function:
the_function(); // do the function here
You have to make 3 corrections.
1.) calling howLong(myVarible); should be howLong(myvarible); because you are defining function as myvarible
2.)You have to call the function add () in function howLong
`the_function() //do the function here`
3.) define cars.
This worked for me
<script>
text = "";
var cars = [1,2,3];
var myVarible = function() {
for (i = 0; i < cars.length; i++) {
text += cars[i] + "<br>";
}
}
function howLong(the_function){
var starting_time = new Date().getMilliseconds();
the_function() //do the function here
var finishing_time = new Date().getMilliseconds();
var difference = finishing_time-starting_time;
document.write(difference);
}
howLong(myVarible); //call my howLong function
</script>
Related
Unable to access function named print1() in click event of jQuery and it is defined also. I have made a Calculator using jQuery and print1() function prints the value in paragraph tag
$(document).ready(function () {
var temp = 0;
var his1 = "";
var k = false;
//flag=false;
var input = "";
var prev = 0;
var count = 0;
var displayFlag = false;
var divide = true;
var firstNumber = "";
var secondNumber = "";
$(".number").click(function (e) {
var num = $(this).text();
//window.alert(num);
print1(num);
});
function print1(num) {
// code to print here
});
});
https://jsfiddle.net/w2h7zLtn/
Try this script. You need to move the print1 to outside of document ready function
Working link
$(document).ready(function(){
var temp=0;
var his1="";
var k=false;
//flag=false;
var input="";
var prev=0;
var count=0;
var displayFlag=false;
var divide = true;
var firstNumber="";
var secondNumber="";
$(".number").click(function(e){
var num= $(this).text();
//window.alert(num);
print1(num);
});
});
function print1(num)
{
alert(num);
}
I was typing onclick() command code on html page though I had click event in jQuery. Thank you for help !
In Google App Scripts (GAS), I want to be able to add and remove TextBox and TextArea elements to a FlexTable (that's being used as a form) and not worry about how many there are. I've named the text elements based on a counter to make this process easier.
So, is there a way to get the number of inputs (TextBox + TextArea) passed to e.parameter after the form is submitted?
Here's the relevant code from the FlexTable:
function doGet() {
var app = UiApp.createApplication();
var flex = app.createFlexTable().setId('myFlex');
var counter = 0;
var row_counter = 0;
...
var firstnameLabel = app.createLabel('Your FIRST Name');
var firstnameTextBox = app.createTextBox().setWidth(sm_width).setName('input' + counter).setText(data[counter]);
flex.setWidget(row_counter, 1, firstnameLabel);
flex.setWidget(row_counter, 2, firstnameTextBox);
row_counter++;
counter++;
var lastnameLabel = app.createLabel('Your LAST Name');
var lastnameTextBox = app.createTextBox().setWidth(sm_width).setName('input' + counter).setText(data[counter]);
flex.setWidget(row_counter, 1, lastnameLabel);
flex.setWidget(row_counter, 2, lastnameTextBox);
row_counter++;
counter++;
...
var submitButton = app.createButton('Submit Proposal');
flex.setWidget(row_counter, 2, submitButton);
var handler = app.createServerClickHandler('saveProposal');
handler.addCallbackElement(flex);
submitButton.addClickHandler(handler);
var scroll = app.createScrollPanel().setSize('100%', '100%');
scroll.add(flex);
app.add(scroll);
return app;
}
And here's the code for the ClickHandler (notice that I currently have 39 elements in my FlexTable):
function saveProposal(e){
var app = UiApp.getActiveApplication();
var userData = [];
var counter = 39;
for(var i = 0; i < counter; i++) {
var input_name = 'input' + i;
userData[i] = e.parameter[input_name];
}
So, is there a way to get the number of elements (in this case 39) without manually counting them and assigning this value to a variable?
I'm new at this stuff and I'd appreciate your help.
Cheers!
The simplest way is to add a hidden widget in your doGet() function that will hold the counter value like this :
var hidden = app.createHidden('counterValue',counter);// don't forget to add this widget as a callBackElement to your handler variable (handler.addCallBackElement(hidden))
then in the handler function simply use
var counter = Number(e.parameter.counterValue);// because the returned value is actually a string, as almost any other widget...
If you want to see this value while debugging you can replace it momentarily with a textBox...
You can search for arguments array based object.
function foo(x) {
console.log(arguments.length); // This will print 7.
}
foo(1,2,3,4,5,6,7) // Sending 7 parameters to function.
You could use a while loop.
var i = 0;
var userData = [];
while (e.parameter['input' + i] != undefined) {
userData[i] = e.parameter['input' + i];
i++;
};
OR:
var i = 0;
var userData = [];
var input_name = 'input0';
while (e.parameter[input_name] != undefined) {
userData[i] = e.parameter[input_name];
i++;
input_name = 'input' + i;
};
Basic javascript function to scroll the text in the title bar, I'm calling it via a setInterval("rotateTitle()", 1000); call after onload.
This function, which takes text from an array, works perfectly.
var counter = 0;
function rotateTitle() {
var baseTitle = "www.mydomain.com - now with JavaScript";
var titleArray = new Array("a","b","c","d","e","f","g");
var titleString = "abcdefg";
var scrollText = getNextScroll(titleArray);
window.document.title=baseTitle.concat(scrollText);
}
function getNextScroll(inValue) {
var str = " ";
for (var i = 0; i<inValue.length; i++) {
var index = i+counter;
if (i+counter >= inValue.length) {
index -= inValue.length;
}
str += inValue[index];
}
counter++;
if (counter > inValue.length) {
counter = 0;
}
return str;
}
Edited here for clarity:
Now if I rewrite the function to scroll a string (not an array), I change the line
str += inValue[index];
to
str.concat(inValue.charAt(index));
and change getNextScroll(titleArray) to getNextScroll(titleString), the script seems to execute, but only the baseTitle is shown.
Why is this wrong?
You have to assign the result of str.concat back to str; otherwise you'll miss the concat operation. Instead of charAt you must use inValue[index].
Do like this:
str = str.concat(inValue[index]);
Here's a JS Bin: http://jsbin.com/aCEBAju/2/
In your original code you have this:
str.concat(inValue.charAt(index));
debugging in Chrome it barks: array has no method charAt.
The solution to the problem is that str.concat(inValue.charAt(index)); must change to str = str.concat(inValue.charAt(index)); or str += inValue.charAt(index);. Str must be assigned the new value. This is the entire working function:
var counter = 0;
function rotateTitle() {
var baseTitle = "www.berrmal.com - now with JavaScript";
var titleArray = new Array("b","e","r","r","m","a","l"); //no longer necessary
var titleString = "berrmal: bigger, longer, uncut";
var scrollText = getNextScroll(titleString);
window.document.title=baseTitle.concat(scrollText);
}
function getNextScroll(inString) {
var str = " ";
for (var i = 0; i<inString.length; i++) {
var index = i+counter;
if (i+counter >= inString.length) {
index -= inString.length;
}
str += inString.charAt(index);
}
counter++;
if (counter > inString.length) {
counter = 0;
}
return str;
}
I figured out the answer to the problem based on Leniel Macaferi's answer, though his posted code is not correct. This method runs successfully in Firefox 23.0 with no error in the console.
I have been working on a simple math game and am having problems getting the overall answer results to return after the end of the game.
Here is what my return function looks like
function pShowResults() {
var pNumResults = document.getElementById("results");
for (var i = 0; i <= 10; i++) {
pNumStore.push(pNumGuess[i]);
var pNumTable = document.createElement("div");
pNumTable.innerHTML = (pNumGuess[i]);
pNumResults.appendChild(pNumTable);
}
}
Here is the full script
Pretty much need debugging help. I new to this so I'm guessing there is a ton that's off, but as long as I can get the results fed back I should be fine.
You are not passing the value of x in many placess
$(document).ready(function () {
//declare arrays and variables for use below
var pNum1 = [];
var pNum2 = [];
var pNumAns = [];
var pNumGuess = [];
var pNumStore = [];
var pNumCarry = 0;
var pNumTrack = 0;
var pNumMessageRight = ['Awesome Job!', 'Correct!', 'Great Job!'];
var pNumMessageWrong = ['Oh No! That Was Wrong!', 'Incorrect!', 'That\'s Wrong'];
$(".Play").click(function () {
$("#popup").attr("class", "on");
pNumTrack = 0;
pNumGen(pNumTrack);
});
$(".pNumSubmit").click(function () {
pNumCalc(pNumTrack-1);
});
$(".pNumNext").click(function () {
pNumGen(pNumTrack);
});
function pNumGen(x) {
pNum1[x] = (Math.round(Math.random() * 51));
pNum2[x] = (Math.round(Math.random() * 51));
pNumAns[x] = pNum1[x] + pNum2[x];
$(".pNum1").html(pNum1[x]);
$(".pNum2").html(pNum2[x]);
$(".pNumGuess").val("");
$(".pNum1").html(pNumTrack[x]);
if (pNumTrack == 2) {
$(".pNumNext").html("");
$(".pNumSubmit").html("Close");
pShowResults();
}
pNumTrack++;
}
function pNumCalc(x) {
pNumGuess[x] = $(".pNumGuess").val();
if (pNumGuess[x] == pNumAns[x]) {
$(".message").html(pNumMessageRight[Math.floor(Math.random() * pNumMessageRight.length)]);
$(".pNumNext").html("Next Question >")
} else {
$(".message").html(pNumMessageWrong[Math.floor(Math.random() * pNumMessageWrong.length)]);
$(".pNumNext").html("Maybe The Next Question >")
}
}
function pShowResults() {
var pNumResults = document.getElementById("results");
for (var i = 0; i < pNumGuess.length; i++) {
pNumStore.push(pNumGuess[i]);
var pNumTable = document.createElement("div");
pNumTable.innerHTML = (pNumGuess[i]);
pNumResults.appendChild(pNumTable);
}
}
});
Demo: Fiddle
There is a function called pNumCalc in your code which you have set to take in an argument, but you never pass one in. You use the argument to store the results in the pNumGuess array, but since the argument is never passed in, the guesses are never stored, and you end up with undefined as the answers the user gave.
Updated fiddle: http://jsfiddle.net/dwdX9/2/. Not sure how close this is to what you actually want though, but hopefully it gets you on the right track.
Because StackOverflow wants code to to be included when JSFiddle is...:
pNumCalc(pNumTrack)
You forget to define array before use it.
function pShowResults() {
var pNumStore = new Array();
var pNumResults = document.getElementById("results");
for (var i = 0; i <= 10; i++) {
pNumStore.push(pNumGuess[i]);
var pNumTable = document.createElement("div");
pNumTable.innerHTML = (pNumGuess[i]);
pNumResults.appendChild(pNumTable);
}
}
I must suggest you should use jquery instead.
After visiting your Fiddle seems like there are many problems with the code. and also your question is unclear.
for e.g.
$(".pNumSubmit").click(function () {
//why x value not passed?
pNumCalc();
});
function pNumCalc(x) {
pNumGuess[x] = $(".pNumGuess").val();
if (pNumGuess[x] == pNumAns[x]) {
$(".message").html(pNumMessageRight[Math.floor(Math.random() * pNumMessageRight.length)]);
$(".pNumNext").html("Next Question >")
} else {
$(".message").html(pNumMessageWrong[Math.floor(Math.random() * pNumMessageWrong.length)]);
$(".pNumNext").html("Maybe The Next Question >")
}
}
Please clear which array is returning undefined so that others can help you.
var ButtonFarmAtivada = new Array();
function X() {
var tableCol = dom.cn("td"); //cell 0
//create start checkbox button
ButtonFarmAtivada[index] = createInputButton("checkbox", index);
ButtonFarmAtivada[index].name = "buttonFarmAtivada_"+index;
ButtonFarmAtivada[index].checked = GM_getValue("farmAtivada_"+index, true);
FM_log(3,"checkboxFarm "+(index)+" = "+GM_getValue("farmAtivada_"+index));
ButtonFarmAtivada[index].addEventListener("click", function() {
rp_farmAtivada(index);
}, false);
tableCol.appendChild(ButtonFarmAtivada[i]);
tableRow.appendChild(tableCol); // add the cell
}
1) is it possible to create the button inside an array as I'm trying to do in that example? like an array of buttons?
2) I ask that because I will have to change this button later from another function, and I'm trying to do that like this (not working):
function rp_marcadesmarcaFarm(valor) {
var vListID = getAllVillageId().toString();
FM_log(4,"MarcaDesmarcaFarm + vListID="+vListID);
var attackList = vListID.split(",");
for (i = 0; i <= attackList.length; i++) {
FM_log(3, "Marca/desmarca = "+i+" "+buttonFarmAtivada[i].Checked);
ButtonFarmAtivada[i].Checked = valor;
};
};
For number 1) yes, you can.
function createInputButton(type, index) { // um, why the 'index' param?
// also, why is this function called 'createInputButton'
// if sometimes it returns a checkbox as opposed to a button?
var inputButton = document.createElement("input");
inputButton.type = type; // alternately you could use setAttribute like so:
// inputButton.setAttribute("type", type);
// it would be more XHTML-ish, ♪ if that's what you're into ♫
return inputButton;
}
I don't really understand part 2, sorry.