main(){
dynamic input = "saya sedang belajar menjadi programmer yang handal";
List<String> huruf = input.split('');
print('input : $input');
var vokal = ['a','i','e','o','u'];
var outputk = '';
var outputv = '';
int index = 0;
do{
if (vokal.contains(huruf[index])) {
outputk += ' ';
outputv += huruf[index];
}else{
outputk += huruf[index];
outputv += ' ';
}
}while(index<huruf.length);
print('output konsonan : $outputk');
print('output vokal = $outputv');
}
why the outputk and outputv result wont come out? when i debug it just print the input
i have been told that i need to change the index but i dont know to change to what
sry for bad english btw
It looks like you just forgot to increment index in your loop. So it create an infinite loop. Adding a ++ to the while condition makes it work.
} while (++index<huruf.length);
Related
This is my main.dart:
import 'edgecases.dart';
main () {
var card = edgecases(0)['input']['cards'];
var query = edgecases(0)['input']['query'];
var result = locate_card(edgecases(0)['input']['cards'], edgecases(0)['input']['query']);
var output = edgecases(0)['output'];
print("Cards:- $card");
print("Query:- $query");
print("Output:- $result");
print("Actual answer:- $output");
}
And this is my edgecases.dart:
edgecases ([edgecasenumber = null]) { //You may make it required, I provided a null as default to check if my syntax is going right.
List tests = [];
var edge1 = {'input': {
'cards': [13, 11, 10, 7, 4, 3, 1, 0],
'query': 1
}, 'output': 6};
tests.addAll([edge1]);
if (edgecasenumber == null){ // This if is useless here so you may
return 'Null type object coud not be found.';
} else {
return tests.elementAt(edgecasenumber); // Indexing in dart also starts with 0.
}
}
locate_card (List cards, int query){
int lo = 0;
int hi = cards.length - 1;
print('$lo $hi');
while (lo <= hi) {
//print('hello'); Uncomment to see if it is entering the loop
var mid = (lo + hi) ~/ 2;
var mid_number = cards[mid];
print("lo:$lo ,hi:$hi, mid:$mid, mid_number:$mid_number");
if (mid_number == query){
return mid;
} else if (mid_number < query) {
hi = mid - 1;
} else if (mid_number > query) {
lo = mid + 1;
};
return -1; //taking about this line
};
}
[I have cut short the code here so you may find some things as unnecessary so just ignore it XD]
Actually I am trying to implement binary search here(I have previously successfully implemented it in python, I am implementing in dart to learn the language.)
On testing it with first edge case(that is on running the command dart main.dart), I found that it is returning the value -1 which was wrong, so I tried commenting the return -1; line in edgecases.dart file to see what happens as it was made to handle another edge case(edgecase if the list is empty, here I have removed that for simplicity). I am not able to understand why it is returning -1 if it gives the right value on commenting that line. Any possible explainations and solutions?
Thanks in advance!
You almost did it right. Just place the return -1; after the while loop's closing brace at the very end of locate_card.
Getting error on this:
for (i = 1; i <= 18; i++) {
oAllKits = myNode.getElementById('node' + i).getElementsByTagName('a');
}
I have a series of IDs on the html document called: node1, node2,... node18. I am trying to target the A tags on these IDs since these A tags are the only elements inside these ids. The console is giving me this message: # has no method 'getElementById'.
I am doing a for loop because I want the variable oAllKits to hold an all those A tags inside the Ids. Thank you advance for your help.
That can be done easily. Find it here
or you can see the code
var avar = document.getElementById('div');
var bvar = div.getElementsByTagName('a');
var cvar = children.length;
for (var i=0;i < len;i++) {
document.getElementById('aclass').innerHTML +='<br> ' + children[i].href;
}
getElementById exists on the document. There should be only 1 of any particular ID so the selector is fast.
var div = document.getElementById('id1');
var children = div.getElementsByTagName('a');
var len = children.length;
for (var i=0;i < len;i++) {
document.getElementById('found').innerHTML += '<br> ' + children[i].href;
}
http://jsfiddle.net/UhT2W/1/
I am working on an extended Textarea like http://podio.github.com/jquery-mentions-input/
There you can see a transparent Textarea with an element in background simulating the highlighting.
You can see the problem there also: type some long text like "iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii " (attention to space at the end)
and then type "#ke" and choose first contact.
You will see that the background breaks different than the text in the textarea.
I figured out that this is not because different sizes!
Any ideas how to avoid that?
P.S.: I dont want to you contentediable.
For testing i used chrome (test with points!) and firefox.
I think this technic is also used often for auto-calculating a textarea-hight and they must have the same problems?!
I found a different solution myself: count line-breaks manually.
I modified and improved the line-break-adder from this thread: finding "line-breaks" in textarea that is word-wrapping ARABIC text
The big difference: this function only retrieves the breaked value without applying the breaks cause it used a temporary element copy.
I think it could help someone else!
function getApplyLineBreaks(strTextAreaId)
{
var strRawValue = $('#' + strTextAreaId).val();
var measureClone = $('#' + strTextAreaId).clone();
measureClone.attr('id', 'value_break_mess_clone');
measureClone.val('');
measureClone.css('overflow', 'hidden');
measureClone.removeAttr('onchange').removeAttr('onclick').removeAttr('onkeydown').removeAttr('onkeyup').removeAttr('onblur').removeAttr('onfocus');
measureClone.height(10);
measureClone.insertAfter('#' + strTextAreaId);
var lastScrollWidth = measureClone[0].scrollWidth;
var lastScrollHeight = measureClone[0].scrollHeight;
var lastWrappingIndex = -1;
var tolerancePixels = 5; //sollte kleiner als font-size
var addedSpace = false;
var debug_c = 0;
for (var i = 0; i < strRawValue.length; i++)
{
var curChar = strRawValue.charAt(i);
if (curChar == ' ' || curChar == '-' || curChar == '+')
lastWrappingIndex = i;
measureClone.val(measureClone.val() + curChar);
addedSpace = false;
if (i != strRawValue.length - 1 && strRawValue.charAt(i + 1) != "\n")
{
measureClone.val(measureClone.val() + ' '); //this is only 90% zero-width breaker unnoticed
addedSpace = true;
}
if (((measureClone[0].scrollWidth - tolerancePixels) > lastScrollWidth) || ((measureClone[0].scrollHeight - tolerancePixels) > lastScrollHeight))
{
if (addedSpace)
measureClone.val(measureClone.val().substr(0, measureClone.val().length - 1));
var buffer = "";
if (lastWrappingIndex >= 0)
{
for (var j = lastWrappingIndex + 1; j < i; j++)
buffer += strRawValue.charAt(j);
lastWrappingIndex = -1;
}
buffer += curChar;
measureClone.val(measureClone.val().substr(0, measureClone.val().length - buffer.length));
if (curChar == "\n")
{
if (i == strRawValue.length - 1)
measureClone.val(measureClone.val() + buffer + "\n");
else
measureClone.val(measureClone.val() + buffer);
}
else
{
measureClone.val(measureClone.val() + "\n" + buffer);
}
lastScrollHeight = measureClone[0].scrollHeight;
}
else if (addedSpace)
{
measureClone.val(measureClone.val().substr(0, measureClone.val().length - 1));
}
}
var returnText = measureClone.val();
measureClone.remove();
return returnText;
}
Only thing: its slow on long texts. Ideas for optimization are welcome.
I'm reading email headers (in Node.js, for those keeping score) and they are VARY varied. E-mail addresses in the to field look like:
"Jake Smart" <jake#smart.com>, jack#smart.com, "Development, Business" <bizdev#smart.com>
and a variety of other formats. Is there any way to parse all of this out?
Here's my first stab:
Run a split() on - to break up the different people into an array
For each item, see if there's a < or ".
If there's a <, then parse out the email
If there's a ", then parse out the name
For the name, if there's a ,, then split to get Last, First names.
If I first do a split on the ,, then the Development, Business will cause a split error. Spaces are also inconsistent. Plus, there may be more e-mail address formats that come through in headers that I haven't seen before. Is there any way (or maybe an awesome Node.js library) that will do all of this for me?
There's a npm module for this - mimelib (or mimelib-noiconv if you are on windows or don't want to compile node-iconv)
npm install mimelib-noiconv
And the usage would be:
var mimelib = require("mimelib-noiconv");
var addressStr = 'jack#smart.com, "Development, Business" <bizdev#smart.com>';
var addresses = mimelib.parseAddresses(addressStr);
console.log(addresses);
// [{ address: 'jack#smart.com', name: '' },
// { address: 'bizdev#smart.com', name: 'Development, Business' }]
The actual formatting for that is pretty complicated, but here is a regex that works. I can't promise it always will work though. https://www.rfc-editor.org/rfc/rfc2822#page-15
const str = "...";
const pat = /(?:"([^"]+)")? ?<?(.*?#[^>,]+)>?,? ?/g;
let m;
while (m = pat.exec(str)) {
const name = m[1];
const mail = m[2];
// Do whatever you need.
}
I'd try and do it all in one iteration (performance). Just threw it together (limited testing):
var header = "\"Jake Smart\" <jake#smart.com>, jack#smart.com, \"Development, Business\" <bizdev#smart.com>";
alert (header);
var info = [];
var current = [];
var state = -1;
var temp = "";
for (var i = 0; i < header.length + 1; i++) {
var c = header[i];
if (state == 0) {
if (c == "\"") {
current.push(temp);
temp = "";
state = -1;
} else {
temp += c;
}
} else if (state == 1) {
if (c == ">") {
current.push(temp);
info.push (current);
current = [];
temp = "";
state = -1;
} else {
temp += c;
}
} else {
if (c == "<"){
state = 1;
} else if (c == "\"") {
state = 0;
}
}
}
alert ("INFO: \n" + info);
For something complete, you should port this to JS: http://cpansearch.perl.org/src/RJBS/Email-Address-1.895/lib/Email/Address.pm
It gives you all the parts you need. The tricky bit is just the set of regexps at the start.
How can I compute a MD5 or SHA1 hash of text in a specific cell and set it to another cell in Google Spreadsheet?
Is there a formula like =ComputeMD5(A1) or =ComputeSHA1(A1)?
Or is it possible to write custom formula for this? How?
Open Tools > Script Editor then paste the following code:
function MD5 (input) {
var rawHash = Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, input);
var txtHash = '';
for (i = 0; i < rawHash.length; i++) {
var hashVal = rawHash[i];
if (hashVal < 0) {
hashVal += 256;
}
if (hashVal.toString(16).length == 1) {
txtHash += '0';
}
txtHash += hashVal.toString(16);
}
return txtHash;
}
Save the script after that and then use the MD5() function in your spreadsheet while referencing a cell.
This script is based on Utilities.computeDigest() function.
Thanks to gabhubert for the code.
This is the SHA1 version of that code (very simple change)
function GetSHA1(input) {
var rawHash = Utilities.computeDigest(Utilities.DigestAlgorithm.SHA_1, input);
var txtHash = '';
for (j = 0; j <rawHash.length; j++) {
var hashVal = rawHash[j];
if (hashVal < 0)
hashVal += 256;
if (hashVal.toString(16).length == 1)
txtHash += "0";
txtHash += hashVal.toString(16);
}
return txtHash;
}
Ok, got it,
Need to create custom function as explained in
http://code.google.com/googleapps/appsscript/articles/custom_function.html
And then use the apis as explained in
http://code.google.com/googleapps/appsscript/service_utilities.html
I need to handtype the complete function name so that I can see the result in the cell.
Following is the sample of the code that gave base 64 encoded hash of the text
function getBase64EncodedMD5(text)
{
return Utilities.base64Encode( Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, text));
}
The difference between this solution and the others is:
It fixes an issue some of the above solution have with offsetting the output of Utilities.computeDigest (it offsets by 128 instead of 256)
It fixes an issue that causes some other solutions to produce the same hash for different inputs by calling JSON.stringify() on input before passing it to Utilities.computeDigest()
function MD5(input) {
var result = "";
var byteArray = Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, JSON.stringify(input));
for (i=0; i < byteArray.length; i++) {
result += (byteArray[i] + 128).toString(16) + "-";
}
result = result.substring(result, result.length - 1); // remove trailing dash
return result;
}
to get hashes for a range of cells, add this next to gabhubert's function:
function RangeGetMD5Hash(input) {
if (input.map) { // Test whether input is an array.
return input.map(GetMD5Hash); // Recurse over array if so.
} else {
return GetMD5Hash(input)
}
}
and use it in cell this way:
=RangeGetMD5Hash(A5:X25)
It returns range of same dimensions as source one, values will spread down and right from cell with formulae.
It's universal single-value-function to range-func conversion method (ref), and it's way faster than separate formuleas for each cell; in this form, it also works for single cell, so maybe it's worth to rewrite source function this way.
Based on #gabhubert but using array operations to get the hexadecimal representation
function sha(str){
return Utilities
.computeDigest(Utilities.DigestAlgorithm.SHA_1, str) // string to digested array of integers
.map(function(val) {return val<0? val+256 : val}) // correct the offset
.map(function(val) {return ("00" + val.toString(16)).slice(-2)}) // add padding and enconde
.join(''); // join in a single string
}
Using #gabhubert answer, you could do this, if you want to get the results from a whole row. From the script editor.
function GetMD5Hash(value) {
var rawHash = Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, value);
var txtHash = '';
for (j = 0; j <rawHash.length; j++) {
var hashVal = rawHash[j];
if (hashVal < 0)
hashVal += 256;
if (hashVal.toString(16).length == 1)
txtHash += "0";
txtHash += hashVal.toString(16);
}
return txtHash;
}
function straightToText() {
var ss = SpreadsheetApp.getActiveSpreadsheet().getSheets();
var r = 1;
var n_rows = 9999;
var n_cols = 1;
var column = 1;
var sheet = ss[0].getRange(r, column, n_rows, ncols).getValues(); // get first sheet, a1:a9999
var results = [];
for (var i = 0; i < sheet.length; i++) {
var hashmd5= GetMD5Hash(sheet[i][0]);
results.push(hashmd5);
}
var dest_col = 3;
for (var j = 0; j < results.length; j++) {
var row = j+1;
ss[0].getRange(row, dest_col).setValue(results[j]); // write output to c1:c9999 as text
}
}
And then, from the Run menu, just run the function straightToText() so you can get your result, and elude the too many calls to a function error.
I was looking for an option that would provide a shorter result. What do you think about this? It only returns 4 characters. The unfortunate part is that it uses i's and o's which can be confused for L's and 0's respectively; with the right font and in caps it wouldn't matter much.
function getShortMD5Hash(input) {
var rawHash = Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, input);
var txtHash = '';
for (j = 0; j < 16; j += 8) {
hashVal = (rawHash[j] + rawHash[j+1] + rawHash[j+2] + rawHash[j+3]) ^ (rawHash[j+4] + rawHash[j+5] + rawHash[j+6] + rawHash[j+7])
if (hashVal < 0)
hashVal += 1024;
if (hashVal.toString(36).length == 1)
txtHash += "0";
txtHash += hashVal.toString(36);
}
return txtHash.toUpperCase();
}
I needed to get a hash across a range of cells, so I run it like this:
function RangeSHA256(input)
{
return Array.isArray(input) ?
input.map(row => row.map(cell => SHA256(cell))) :
SHA256(input);
}