Uncaught SyntaxError: Unexpected identifier - javascript

I get a syntax error: unexpected identifier at line 22. I've been over and over this code, and I can't for the life of me figure out what's wrong. It's a code to determine the shortest route from one node to another.
"use strict"
function findpath(G,si,di){
//G is an array of nodes (with id, lat, lon)
var cvi = si;
var P=[si];
var C=[0,P];
var M=[C];
var O=[];
var ctr=0;
var done = false;
var reached = false;
var best = undefined;
while(!done){
ctr++;
if( ctr > 100 ){
alert("Sorry, can't find the destination.");
return P;
}
for (int i=0;i<M.length;++i){
var last = M[i[1]].length;
var v = M[i[1[last]]];
//select a random neighbor...
if( v.N.length === 0 ){
alert("Wat?");
return [];
}
else if( v.N.length === 1 ){
break;
}
else if( v === di ){
break;
}
else {
for (int j=0;j<v.N.length;++j){
var temp = M[i];
O.push(temp[1].push(v.N[j]));
var dist = distance(v.lat,v.lon,v.N[j].lat,v.N[j].lon);
var temp2 = O.length-1;
O[temp2[0]]+=dist;
if (v.N[j]===di){
reached = true;
if (best === undefined){
console.log("ASSIGN");
best = O[temp2];
}
else {
if (O[temp2[0]]<best[0]) {
best = O[temp2];
}
}
}
}
}
}
M = O;
var any = false;
for (int i=0;i<M.length;++i) {
if (M[i[0]]<best[0]) {
any = true;
}
}
if (!any) {
done = true;
}
}
//return the path
return best[1];
}
function distance(x1,y1,x2,y2){
return Math.sqrt(Math.pow((x2-x1),2)+Math.pow((y2-y1),2));
}

This:
for (int i=0;i<M.length;++i){
shouldn't have int. It should be var.
for (var i=0;i<M.length;++i){

You have for (int i=0;i<M.length;++i){.
int is an identifier, but not one that is part of JavaScript.
You probably meant var.

Related

In Javascript function onLoadPopulate() is not working?

function onLoadPopulate() {
var grid = $("#grid0");
var numberOfRecords = grid.getGridParam("records");
var dataFromGrid = grid.jqGrid('getGridParam', 'data');
var count=0;
var link;
if(numberOfRecords>0){
numberOfRecords=endNo;
count=begNo-1;
}
for ( ; count < numberOfRecords; count++) {
var program = dataFromGrid[count].program;
var programVal="";
var programs = program.replace(/\s/g,'').split(',');
for ( var i = 0; i< programs.length;i++) {
if (programs[i] == "FS") {
if (programVal == "") {
programVal = 'DOG';
} else {
programVal = programVal.concat(",DOG");
}
} else if (programs[i] == "TF") {
console.log("in TF");
if (programVal == "") {
programVal = 'CAT';
} else {
programVal = programVal.concat(",CAT");
}
}
grid.jqGrid('setCell', count + 1, 'program',
programVal);
}
}
TEST DATA:
program = FS, TF
result i'm getting : DOG but
the result i need : DOG,CAT
When it is doing else if Even if programs[i] = TF it is skipping if loop inside.
Can anyone help with this JavaScript function?
I can't figure it out what is wrong.
issue with input data consisted of special characters i used following replace and it worked
.replace(/[^a-z0-9,\s]/gi,'').replace(/[_\s]/g,'').split(',')

TypeError in Javascript

function url_info()
{
var url_val=document.getElementsByClassName("spc-tab");
var current_s=0;
for(var i=0;i<url_val.length;i++)
{
var url_class=url_val[i].className.split(" ");
if(url_class[1]!=null)
{
if(url_class[1]=="selected")
{
current_s=i;
break;
}
}
}
var temp_1=url_val[current_s].text; //**Error here**
return(temp_1);
}
In this function url_info i am getting the TypeError But i don't know why?? .... as My var current_s is defined within the scope and integer...
why write this much of code when one line can do:
function url_info() {
var temp_1 = "";
var url_val = document.querySelector(".spc-tab.selected");
temp_1 = url_val[0].text > 0 ? url_val[0].text : temp_1;
return (temp_1);
}
and second, you don't require to convert your class name to string then split. You just can access them through classlist. Then use contains.
function url_info() {
var url_val = document.getElementsByClassName("spc-tab");
var current_s = 0;
for (var i = 0; i < url_val.length; i++) {
var isSelected = url_val[i].classList.contains("selected");
if (isSelected) {
current_s = i;
break;
}
}
var temp_1 = url_val[current_s].text;
return (temp_1);
}

error: Cannot read property 'split' of undefined

I am getting a value as a string from cookie which has multiple values stored in it.
I am separating these values with the use of the split() function, but I am getting an error continuously. Here is my code. It would be a great help if anyone can help me out with this.
var sourcez = jQuery.cookie("Source");
var mediumz = jQuery.cookie("Medium");
function utmze(eutmz) {
var utmz_val = jQuery.cookie("__utmzz");
for (var o = utmz_val, r = o.split("|"), a = 0; (a < r.length); a++) {
var t = r[a].split("=");
if (t[0] == eutmz) {
return t[1];
}
}
}
Make sure that string is not empty , null and undefined before you are performing the split action
function isValidString(input){
if(input != null && input != '' && input != undefined){
return true;
}
return false;
}
if(isValidString(input)){
input.split('=');
}
Make the following changes to avoid the error:
var sourcez = jQuery.cookie("Source");
var mediumz = jQuery.cookie("Medium");
function utmze(eutmz) {
var utmz_val = jQuery.cookie("__utmzz");
for (var o = utmz_val, r = o.split("|"), a = 0; (a < r.length); a++) {
if (typeof r[a] != "undefined") { // Checking if the variable is defined.
var t = r[a].split("=");
if (t[0] == eutmz) {
return t[1];
}
}
}
}

How does Javascript evaluate the right parenthesis?

I'm working on a calculator that takes an expression such as (5+4) and evaluates it by passing the buttons pressed to an array, and then building a parse tree from the data in the array.
What's interesting/strange, is that my code won't push the value of the right parenthesis to the array. Here is my code, could someone help me out?
The console.log activeButton shows that is the value of the button being pressed, but even when I placed calcArray.push() outside the if statements it would not push ) to an array.
$(document).ready(function(){
var calcArray = new Array();
$("input").click(function(){
var activeButton = this.value;
console.log(activeButton);
if(!isNaN(activeButton))
{
calcArray.push(parseInt(activeButton));
console.log(calcArray);
}
else if(activeButton === "=")
{
evaluate(buildTree(calcArray));
calcArray = [];
}
else
{
calcArray.push(activeButton);
}
});
});
The BuildTree code:
function BinaryTree(root) {
this.root = root;
this.activeNode = root;
}
function Node(element){
this.element = element;
this.parent;
this.rightChild;
this.leftChild;
this.setLeft = function(node){
this.leftChild = node;
node.parent = this;
};
this.setRight = function(node){
this.rightChild = node;
node.parent = this;
};
}
//methods
var buildTree = function(array)
{
var tree = new BinaryTree(new Node(null));
for(var i = 0; i < array.length; i++)
{
var newNode = new Node(array[i]);
if(array[i] == "(")
{
newNode.element = null;
tree.activeNode.setLeft(newNode);
tree.activeNode = newNode;
}
else if(array[i] == "+" || array[i] == "-" || array[i] == "/" || array[i] == "*")
{
tree.activeNode.element = newNode.element;
tree.activeNode.setRight(new Node(null));
tree.activeNode = tree.activeNode.rightChild;
}
else if(array[i] == ")")
{
if(tree.activeNode.parent == null)
{
;
}
else
{
tree.activeNode = tree.activeNode.parent;
tree.root = tree.activeNode;
}
}
else
{
tree.activeNode.element = newNode.element;
tree.activeNode = tree.activeNode.parent;
}
}
return tree.activeNode;
}
var evaluate = function(node){
var newNode1, newNode2;
newNode1 = new Node(null);
newNode1.parent = node;
newNode2 = new Node(null);
newNode2.parent = node;
if(node.leftChild == null && node.rightChild == null)
return node.element;
else{
newNode1.element = evaluate(node.leftChild);
newNode2.element = evaluate(node.rightChild);
if(newNode1.parent.element == "+")
{
return Number(newNode1.element) + Number(newNode2.element);
}
if(newNode1.parent.element == "-")
{
return newNode1.element - newNode2.element;
}
if(newNode1.parent.element == "*")
{
return newNode1.element * newNode2.element;
}
else
{
return newNode1.element / newNode2.element;
}
}
};
I just tried this out using your code and it worked fine passing the value as a string:
function pushButton (value) {
var activeButton = value;
console.log(activeButton);
if(!isNaN(activeButton))
{
calcArray.push(parseInt(activeButton));
console.log(calcArray);
}
else if(activeButton === "=")
{
evaluate(buildTree(calcArray));
calcArray = [];
}
else
{
calcArray.push(activeButton);
}
};
You aren't ever printing out the array in the last case (which is where the right paren would go), so are you sure it's not on the array and you just aren't seeing the visual feedback?
If so, we need to see more of your code. Try and setup a jsfiddle.

javascript - Failed to load source for: http://localhost/js/m.js

Why oh why oh why... I can't figure out why I keep getting this error. I think I might cry.
/*** common functions */
function GE(id) { return document.getElementById(id); }
function changePage(newLoc) {
nextPage = newLoc.options[newLoc.selectedIndex].value
if (nextPage != "")
{
document.location.href = nextPage
}
}
function isHorizO(){
if (navigator.userAgent.indexOf('iPod')>-1)
return (window.orientation == 90 || window.orientation==-90)? 1 : 0;
else return 1;
}
function ShowHideE(el, act){
if (GE(el)) GE(el).style.display = act;
}
function KeepTop(){
window.scrollTo(0, 1);
}
/* end of common function */
var f = window.onload;
if (typeof f == 'function'){
window.onload = function() {
f();
init();
}
}else window.onload = init;
function init(){
if (GE('frontpage')) init_FP();
else {
if (GE('image')) init_Image();
setTimeout('window.scrollTo(0, 1)', 100);
}
AddExtLink();
}
function AddExtLink(){
var z = GE('extLink');
if (z){
z = z.getElementsByTagName('a');
if (z.length>0){
z = z[0];
var e_name = z.innerHTML;
var e_link = z.href;
var newOption, oSe;
if (GE('PSel')) oSe = new Array(GE('PSel'));
else
oSe = getObjectsByClassName('PSel', 'select')
for(i=0; i<oSe.length; i++){
newOption = new Option(e_name, e_link);
oSe[i].options[oSe[i].options.length] = newOption;
}
}
}
}
/* fp */
function FP_OrientChanged() {
init_FP();
}
function init_FP() {
// GE('orientMsg').style.visibility = (!isHorizO())? 'visible' : 'hidden';
}
/* gallery */
function GAL_OrientChanged(link){
if (!isHorizO()){
ShowHideE('vertCover', 'block');
GoG(link);
}
setTimeout('window.scrollTo(0, 1)', 500);
}
function init_Portfolio() {
// if (!isHorizO())
// ShowHideE('vertCover', 'block');
}
function ShowPortfolios(){
if (isHorizO()) ShowHideE('vertCover', 'none');
}
var CurPos_G = 1
function MoveG(dir) {
MoveItem('G',CurPos_G, dir);
}
/* image */
function init_Image(){
// check for alone vertical images
PlaceAloneVertImages();
}
function Img_OrtChanged(){
//CompareOrientation(arImgOrt[CurPos_I]);
//setTimeout('window.scrollTo(0, 1)', 500);
}
var CurPos_I = 1
function MoveI(dir) {
CompareOrientation(arImgOrt[CurPos_I+dir]);
MoveItem('I',CurPos_I, dir);
}
var arImgOrt = new Array(); // orientation: 1-horizontal, 0-vertical
var aModeName = new Array('Horizontal' , 'Vertical');
var arHs = new Array();
function getDims(obj, ind){
var arT = new Array(2);
arT[0] = obj.height;
arT[1] = obj.width;
//arWs[ind-1] = arT;
arHs[ind] = arT[0];
//**** (arT[0] > arT[1]) = (vertical image=0)
arImgOrt[ind] = (arT[0] > arT[1])? 0 : 1;
// todor debug
if(DebugMode) {
//alert("["+obj.width+","+obj.height+"] mode="+((arT[0] > arT[1])? 'verical' : 'hoziontal'))
writeLog("["+obj.width+","+obj.height+"] mode="+((arT[0] > arT[1])? 'verical' : 'hoziontal')+' src='+obj.src)
}
if (arImgOrt[ind]) {
GE('mi'+ind).className = 'mImageH';
}
}
function CompareOrientation(imgOrt){
var iPhoneOrt = aModeName[isHorizO()];
GE('omode').innerHTML = iPhoneOrt;
//alert(imgOrt == isHorizO())
var sSH = (imgOrt == isHorizO())? 'none' : 'block';
ShowHideE('vertCover', sSH);
var sL = imgOrt? 'H' : 'V';
if (GE('navig')) GE('navig').className = 'navig'+ sL ;
if (GE('mainimage')) GE('mainimage').className = 'mainimage'+sL;
var sPfL = imgOrt? 'Port-<br>folios' : 'Portfolios' ;
if (GE('PortLnk')) GE('PortLnk').innerHTML = sPfL;
}
function SetGetDim( iMInd){
var dv = GE('IImg'+iMInd);
if (dv) {
var arI = dv.getElementsByTagName('img');
if (arI.length>0){
var oImg = arI[0];
oImg.id = 'Img'+iMInd;
oImg.className = 'imageStyle';
//YAHOO.util.Event.removeListener('Img'+iMInd,'load');
YAHOO.util.Event.on('Img'+iMInd, 'load', function(){GetDims(oImg,iMInd);}, true, true);
//oImg.addEventListener('load',GetDims(oImg,iMInd),true);
}
}
}
var occ = new Array();
function PlaceAloneVertImages(){
var iBLim, iELim;
iBLim = 0;
iELim = arImgOrt.length;
occ[0] = true;
//occ[iELim]=true;
for (i=1; i<iELim; i++){
if ( arImgOrt[i]){//horizontal image
occ[i]=true;
continue;
}else { // current is vertical
if (!occ[i-1]){//previous is free-alone. this happens only the first time width i=1
occ[i] = true;
continue;
}else {
if (i+1 == iELim){//this is the last image, it is alone and vertical
GE('mi'+i).className = 'mImageV_a'; //***** expand the image container
}else {
if ( arImgOrt[i+1] ){
GE('mi'+i).className = 'mImageV_a';//*****expland image container
occ[i] = true;
occ[i+1] = true;
i++;
continue;
}else { // second vertical image
occ[i] = true;
occ[i+1] = true;
if (arHs[i]>arHs[i+1]) GE('mi'+(i+1)).style.height = arHs[i]+'px';
i++;
continue;
}
}
}
}
}
//arImgOrt
}
function AdjustWebSiteTitle(){
//if (GE('wstitle')) if (GE('wstitle').offsetWidth > GE('wsholder').offsetWidth) {
if (GE('wstitle')) if (GE('wstitle').offsetWidth > 325) {
ShowHideE('dots1','block');
ShowHideE('dots2','block');
}
}
function getObjectsByClassName(className, eLTag, parent){
var oParent;
var arr = new Array();
if (parent) oParent = GE(parent); else oParent=document;
var elems = oParent.getElementsByTagName(eLTag);
for(var i = 0; i < elems.length; i++)
{
var elem = elems[i];
var cls = elem.className
if(cls == className){
arr[arr.length] = elem;
}
}
return arr;
}
////////////////////////////////
///
// todor debug
var DebugMode = (getQueryVariable("debug")=="1")
function getQueryVariable(variable) {
var query = window.location.search.substring(1);
var vars = query.split("&");
var sRet = ""
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split("=");
if (pair[0] == variable) {
sRet = pair[1];
}
}
return sRet
//alert('Query Variable ' + variable + ' not found');
}
var oLogDiv=''
function writeLog(sMes){
if(!oLogDiv) oLogDiv=document.getElementById('oLogDiv')
if(!oLogDiv) {
oLogDiv = document.createElement("div");
oLogDiv.style.border="1px solid red"
var o = document.getElementsByTagName("body")
if(o.length>0) {
o[0].appendChild(oLogDiv)
}
}
if(oLogDiv) {
oLogDiv.innerHTML = sMes+"<br>"+oLogDiv.innerHTML
}
}
First, Firebug is your friend, get used to it. Second, if you paste each function and some supporting lines, one by one, you will eventually get to the following.
var DebugMode = (getQueryVariable("debug")=="1")
function getQueryVariable(variable)
You can't execute getQueryVariable before it is defined, you can create a handle to a future reference though, there is a difference.
There are several other potential issues in your code, but putting the var DebugMode line after the close of the getQueryVariable method should work fine.
It would help if you gave more context. For example, is
Failed to load source for:
http://localhost/js/m.js
the literal text of an error message? Where and when do you see it?
Also, does that code represent the contents of http://localhost/js/m.js? It seems that way, but it's hard to tell.
In any case, the JavaScript that you've shown has quite a few statements that are missing their semicolons. There may be other syntax errors as well. If you can't find them on your own, you might find tools such as jslint to be helpful.
make sure the type attribute in tag is "text/javascript" not "script/javascript".
I know it is more than a year since this question was asked, but I faced this today. I had a
<script type="text/javascript" src="/test/test-script.js"/>
and I was getting the 'Failed to load source for: http://localhost/test/test-script.js' error in Firebug. Even chrome was no loading this script. Then I modified the above line as
<script type="text/javascript" src="/test/test-script.js"></script>
and it started working both in Firefox and chrome. Documenting this here hoping that this will help someone. Btw, I dont know why the later works where as the previous one didn't.

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