I'm developing a small calculator that allows you to input a string. So it has to recognize which sign has to be executed in first place.
My problem is that somewhere and by some reason it creates a stackoverflow. I was expecting if you could help me to find out.
The first for is to give each operator a precedence, so * is more important than +. Second loop is destinated to find the sign into the string, so if input.indexOf(signos[i]) is lower or than 0 it jumps off the operator. if its dalse it goes in and put the number in left side and right side into two aux values and in the end it solves the sign and replace it into the string so at the end it shows you the result.
Thanks.
var input;
var signos = ['*', '/', '+', '-'];
var cursor = 0;
var aux1 = "";
var aux2 = "";
var auxSigno = "";
var resuelto = 0;
var encontrado = false;
function lectura(){
input = document.getElementById("ans").value;
console.log(input);
for(i = 0; i < signos.length; i++){
cursor = input.indexOf(signos[i]);
//console.log(cursor);
if (cursor > -1){
auxSigno = input.charAt(cursor);
//console.log(auxSigno);
for(j = 0; j < input.length; i++){
for(k = cursor-1; comparar(k); k--){
aux1+=input[k];
}
for(l = cursor+1; comparar(l); l++){
aux2+=input[l];
}
operar();
var cadena = aux1+auxSigno+aux2;
var auxCadena = input.replace(cadena, resuelto);
input = auxCadena;
}
}
}
console.log(input);
}
function comparar(caracter){
for(m = 0; m < signos.length; m++){
if (caracter === signos[m]){
return true;
}
}
return false;
}
function operar(){
console.log(auxSigno);
console.log(aux1);
console.log(aux2);
if (signos.indexOf(auxSigno) == 0){
resuelto = parseFloat(aux1) * parseFloat(aux2);
console.log(resuelto + " opc1");
} else if (signos.indexOf(auxSigno) == 1) {
resuelto = parseFloat(aux1) / parseFloat(aux2);
console.log(resuelto + " opc2");
} else if (signos.indexOf(auxSigno) == 2) {
resuelto = parseFloat(aux1) + parseFloat(aux2);
console.log(resuelto + " opc3")
} else if (signos.indexOf(auxSigno) == 3){
resuelto = parseFloat(aux1) - parseFloat(aux2);
console.log(resuelto + " opc4")
} else {
console.log("opc no implementada");
}
}
if the input is "6+6*8", the result should be "54", but it doesn't show anything, just keep doing the for.
Related
Here is my code. What should I modify of this code to get the output as
"T-1
r-1
a-1
e-1 "
(other characters are repeating. So no need to print the others)
function different() {
var retureArr = [];
var count = 0;
var complete_name = "Trammell";
var stringLength = complete_name.length;
for (var t = 0; t < stringLength; t++) {
for (var s = 0; s < stringLength; s++) {
var com1 = complete_name.charAt(t);
var com2 = complete_name.charAt(s);
if (com1 != com2) {
retureArr[count] = com1;
count++;
}
}
count = 0;
}
}
I think this is what you want. You need to count the number of occurrences of each character in a dictionary. Then you can print them based on the count being equal to 1.
var retureArr = [];
var complete_name = "Trammell";
for (var i = 0; i < complete_name.length; i++)
{
var key = complete_name[i];
if (!(key in retureArr))
{
retureArr[key] = 1;
}
else
{
retureArr[key] = retureArr[key] + 1;
}
}
var output = "";
for (var key in retureArr)
{
if (retureArr[key] == 1)
{
output += key + "-" + retureArr[key] + " ";
}
}
alert(output);
This alerts the following string:
T-1 r-1 a-1 e-1
This works. but perhaps isn't the most efficient!
var string = "input string";
var stringList = [];
var outputString = "";
for (var i=0; i < string.length; i++){
var charObject = {"Char": string.charAt(i), "Passed": false};
stringList.push(charObject);
}
for (var i=0; i < stringList.length; i++){
if(!stringList[i].Passed && stringList[i].Char != " "){
var currentCount = countOccurrences(string, stringList[i].Char);
if(currentCount == 1){
outputString += stringList[i].Char+"-"+currentCount + " ";
}
stringList[i].Passed = true;
}
}
console.log(outputString);
function countOccurrences(string, char){
var count = 0;
for (var i=0; i < string.length; i++){
if(string.charAt(i) == char){
count++;
}
}
return count;
}
I need to sort list strings under the table ,so for that i have written following lines of code but on console i am not getting any values:
var j = 9;
var rows = element.all(by.repeater('row in renderedRows'));
var column = element.all(by.repeater('col in renderedColumns'));
expect(rows.count()).toEqual(5); //here its printing number of rows
expect(column.count()).toEqual(5); //here its printing number of columns
var arr = [rows.count()];
for (var i = 0; i < rows.count(); i++) {
console.log("aai" + i);
if (i = 0) {
//var columnvalue=column.get(9).getText();
var columnvalue = column.get(9).getText().then(function(ss) {
return ss.trim();
arr[i] = ss.trim(); //here it will save the value first value of column
console.log("value1" + arr[i]);
expect(arr[i]).toEqual('DN');
console.log("aa" + ss.trim());
});
} else {
var j = j + 8;
var columnvalue = column.get(j).getText().then(function(ss) {
return ss.trim();
arr[i] = ss.trim(); //here it will save the other values of column
console.log("value" + arr[i]);
expect(arr[i]).toEqual('DN');
console.log("ab" + ss.trim());
});
}
}
Sorting_Under_Table: function(col){
test = [];
var m;
var dm = 0;
element(by.xpath('//div[#class="ngHeaderScroller"]/div['+col+']')).click();
element.all(by.repeater('row in renderedRows')).then(function(row) {
m = row.length;
for (i = 1; i <= row.length; i++)
{
user_admin_table_name = browser.driver.findElement(by.xpath('//div[#class="ngCanvas"]/div['+i+']/div['+col+']'));
user_admin_table_name.getText().then(function(text) {
var test_var1 = text.toLowerCase().trim();
test.push(test_var1);
var k = test.length
if (k == m){
for (j = 0; j < test.length; j++){
test.sort();
d=j+1;
user_admin_table_name1 = browser.driver.findElement(by.xpath('//div[#class="ngCanvas"]/div['+d+']/div['+col+']'));
user_admin_table_name1.getText().then(function(text1) {
var test_var2 = text1.toLowerCase().trim();
if (test_var2 == test[dm]){
expect(test_var2).toEqual(test[dm]);
dm = dm +1;
}else {
expect(test_var2).toEqual(test[dm]);
log.error("Sorting is not successful");
dm = dm +1;
}
});
}
}
});
}
});
},
You can use this code for sorting and verifying is it sorted or not
I'm not sure how your above example is doing any sorting, but here's a general solution for trimming and then sorting:
var elementsWithTextToSort = element.all(by.xyz...);
elementsWithTextToSort.map(function(elem) {
return elem.getText().then(function(text) {
return text.trim();
});
}).then(function(trimmedTexts) {
return trimmedTexts.sort();
}).then(function(sortedTrimmedTexts) {
//do something with the sorted trimmed texts
});
var sortitems = 1;
function move(fbox, tbox, all)
{
for ( var i = 0; i < fbox.options.length; i++)
{
if (!all && fbox.options[i].selected && fbox.options[i].value != "")
{
var no = new Option();
no.value = fbox.options[i].value;
no.text = fbox.options[i].text;
tbox.options[tbox.options.length] = no;
fbox.options[i].value = "";
fbox.options[i].text = "";
}
else
{
if (all && fbox.options[i].value != "")
{
var no = new Option();
no.value = fbox.options[i].value;
no.text = fbox.options[i].text;
tbox.options[tbox.options.length] = no;
fbox.options[i].value = "";
fbox.options[i].text = "";
}
}
}
BumpUp(fbox);
if (sortitems)
SortD(tbox);
checkSelectAll();
}
This move function is getting called after clicking on the button, then it will call the sort method where sorting is happening by alphabetically. So we dont need to sort we need to populate the data as it is from the left side box to right side box and vice versa, but sorting is happening. Please help out be here.
function SortD(box)
{
var temp_opts = new Array();
var temp = new Object();
for ( var i = 0; i < box.options.length; i++)
{
temp_opts[i] = box.options[i];
}
for ( var x = 0; x < temp_opts.length - 1; x++)
{
for ( var y = (x + 1); y < temp_opts.length; y++)
{
if (temp_opts[x].value > temp_opts[y].value)
{
temp = temp_opts[x].text;
temp_opts[x].text = temp_opts[y].text;
temp_opts[y].text = temp;
temp = temp_opts[x].value;
temp_opts[x].value = temp_opts[y].value;
temp_opts[y].value = temp;
}
}
}
for ( var i = 0; i < box.options.length; i++)
{
box.options[i].value = temp_opts[i].value;
box.options[i].text = temp_opts[i].text;
}
}
Depends on the bumpup box function. The elements are moving from one box to another. It will replace the element with empty space and move to top and do for all the elements. Please help out me here
Thanks in advance
function BumpUp(box)
{
for ( var i = 0; i < box.options.length; i++)
{
if (box.options[i].value == "")
{
for ( var j = i; j < box.options.length - 1; j++)
{
box.options[j].value = box.options[j + 1].value;
box.options[j].text = box.options[j + 1].text;
}
var ln = i;
break;
}
}
if (ln < box.options.length)
{
box.options.length -= 1;
BumpUp(box);
}
}
Maybe it's just me, but it's hard to see what the issue is here.
If it is simply that SortD(tbox) is being called within the move() function, that's because
sortitems is set to 1 right at the top of the code. The value of sortitems is never changed anywhere else, so this conditional is always true and SortD is always called.
if (sortitems)
SortD(tbox);
Keep in mind this is unfinished, the only question I have is why does the console.log produce this output?
/>B /* This is what I expected */
/>B-D /* The second output I expected to be just ">/D" I am conused as to how it is coming up with >/"B-D" */
graphArray = ["4","A","B","C","D","A-B","B-D","B-C","C-D"];
pointsArray = [];
linesArray = [];
nodes = graphArray[0];
for (i = 1; i < graphArray.length; i++) {
if (i <= nodes) {
pointsArray.push(graphArray[i]);
}
if (i > nodes) {
linesArray.push(graphArray[i]);
}
}
nextpoint = pointsArray[0];
patt = new RegExp(/-.*/);
patt2 = new RegExp(nextpoint + "-");
for (i = 0; i < linesArray.length; i++) {
x = 0;
while (x < linesArray.length) {
if (linesArray[x].replace(patt,"") === nextpoint) {
nextpoint = linesArray[x].replace(patt2,"");
console.log(nextpoint);
}
x++;
}
}
Edit: Smacks forehead it must be getting too late for me I can't believe I missed that. Thank you for point that out. Solved.
Your patt2 = new RegExp(nextpoint + "-"); should be inside the loop
for (i = 0; i < linesArray.length; i++) {
x = 0;
while (x < linesArray.length) {
patt2 = new RegExp(nextpoint + "-");
if (linesArray[x].replace(patt,"") === nextpoint) {
nextpoint = linesArray[x].replace(patt2,"");
console.log(nextpoint);
}
x++;
}
}
I meet a trouble with a function. actually I need to make this function to perform a calculation on some text fields. When I worked on a single line no problems. But recently, someone asked to make a table with multiple lines (one line can be added dynamically) so, I do the following function so that it can not only duplicate line but id change all the fields concerned, so I add class to these fields. therefore I proceed as follows:
function clone(line) {
newLine = line.cloneNode(true);
line.parentNode.appendChild(newLine);
var tab = document.getElementsByClassName('libelle_debours')
var i = -1;
while (tab[++i]) {
tab[i].setAttribute("id", "_" + i);
};
var cab = document.getElementsByClassName('ht_no_tva')
var j = -1;
while (cab[++j]) {
cab[j].setAttribute("id", "_" + j);
};
var dab = document.getElementsByClassName('ht_tva')
var k = -1;
while (dab[++k]) {
dab[k].setAttribute("id", "_" + k);
};
var eab = document.getElementsByClassName('taux')
var l = -1;
while (eab[++l]) {
eab[l].setAttribute("id", "_" + l);
};
var fab = document.getElementsByClassName('tva')
var m = -1;
while (fab[++m]) {
fab[m].setAttribute("id", "_" + m);
};
}
function delRow() {
var current = window.event.srcElement;
//here we will delete the line
while ((current = current.parentElement) && current.tagName != "TR");
current.parentElement.removeChild(current);
}
The problem in fact is the second function that is used to make the calculation:
function calcdebours() {
var taux = document.getElementById('debours_taux_tva').value;
var ht_no_tva = document.getElementById('debours_montant_ht_no_tva').value;
var ht_tva = document.getElementById('debours_montant_ht_tva').value;
var tva = Math.round((((ht_tva) * (taux)) / 100) * 100) / 100;;
if (taux == '') {
taux = 0;
}
if (ht_no_tva == '') {
ht_no_tva = 0;
}
if (ht_tva == '') {
ht_tva = 0;
}
document.getElementById('debours_montant_tva').value = tva;
document.getElementById('debours_montant_ttc').value = (tva) + parseFloat(ht_tva) + parseFloat(ht_no_tva)
}
function
montant_debours() {
var ttc = document.getElementById('debours_montant_ttc').value;
var ttc2 = document.getElementById('debours_montant_ttc2').value;
if (ttc == '') {
var ttc = 0;
} else {
var ttc = document.getElementById('debours_montant_ttc').value;
}
if (ttc2 == '') {
var ttc2 = 0;
} else {
var ttc2 = document.getElementById('debours_montant_ttc2').value;
}
tx = parseFloat(ttc) + parseFloat(ttc2);
document.getElementById('ttc_cheque').value = Math.round(tx * 100) / 100;
}
As Id are not the same, do I have to create as many functions
there are lines?
Is it possible to fit a single function to process each line?
If so can you tell me how?
If I'm not mistaken you can use for loop and append increment to the end of element's id. Like this:
trs = document.getElementById('container Id').getElementsByTagName('tr');
For (var i = 1, i <= trs.length; i++)
{
var el = document.getElementById('debours_montant_ttc' + i);
}