Develop Reference

Javascript keydown event doesn´t give me the char # in EDGE

I'm working in a mentioning directive, basically when the user is typing in the input field ( a div with contentEditable=true in this case ), is gonna display a list of user for then insert the name of the user in a specific format, now the list is gonna displayed after the user press #, for chrome and firefox work just great but for EDGE and IE ( unfortunately i need to support ) doesn't work because in this case the # apparently doesn't exist.
now for the key press I'm using the #HostListener('keydown', ['$event'])
HostListener
#HostListener('keydown', ['$event']) keyHandler(event: any, nativeElement: HTMLInputElement = this._element.nativeElement) {
let val: string = getValue(nativeElement);
let pos = getCaretPosition(nativeElement, this.iframe);
let charPressed = this.keyCodeSpecified ? event.keyCode : event.key;
if (!charPressed) {
let charCode = event.which || event.keyCode;
if (!event.shiftKey && (charCode >= 65 && charCode <= 90)) {
charPressed = String.fromCharCode(charCode + 32);
} else if (event.shiftKey && charCode === KEY_2) {
charPressed = this.triggerChar;
} else {
charPressed = String.fromCharCode(event.which || event.keyCode);
}
}
if (event.keyCode == KEY_ENTER && event.wasClick && pos < this.startPos) {
// put caret back in position prior to contenteditable menu click
pos = this.startNode.length;
setCaretPosition(this.startNode, pos, this.iframe);
}
// console.log('=== keyHandler', this.startPos, pos, val, charPressed, event);
this.triggerList(event, charPressed, nativeElement, val, pos);
}
Now as you can see I'm using event.keycode and event.key to get the key from the event keydown, I pass does values to the method this.triggerList()
that basically is gonna display the list of mentions options if and only if the user press # that is the trigger char ( this.triggerChar ).
TriggerList Method
private triggerList(event, charPressed, nativeElement, val, pos): any {
if (charPressed == this.triggerChar) {
this.startPos = pos;
this.startNode = (this.iframe ? this.iframe.contentWindow.getSelection() : window.getSelection()).anchorNode;
// console.log('=== HERE CHAR', this.startNode, this.startPos);
// check if mentioning is allowed based on the text before the mention start char
if (!this.configService.appConfig.platform.EDGE) {
let position = this.getHtmlCaretPosition(nativeElement);
const charBefore = val[position - 1];
if (charBefore == undefined || charBefore.trim() == '' || charBefore == ':') {
this.log.trace('Start mentioning');
this.stopSearch = false;
this.searchString = null;
this.showSearchList(nativeElement);
this.updateSearchList();
}
} else {
this.stopSearch = false;
this.searchString = null;
this.showSearchList(nativeElement);
this.updateSearchList();
}
} else if (this.startPos >= 0 && !this.stopSearch) {
if (pos <= this.startPos) {
this.searchList.hidden = true;
}
// ignore shift when pressed alone, but not when used with another key
else if (event.keyCode !== KEY_SHIFT && !event.metaKey && !event.altKey && !event.ctrlKey && pos > this.startPos) {
if (event.keyCode === KEY_SPACE) {
this.startPos = -1;
} else if (event.keyCode === KEY_BACKSPACE && pos > 0) {
pos--;
if (pos == 0) {
this.stopSearch = true;
}
this.searchList.hidden = this.stopSearch;
} else if (!this.searchList.hidden) {
if (event.keyCode === KEY_TAB || event.keyCode === KEY_ENTER) {
this.stopEvent(event);
this.searchList.hidden = true;
// value is inserted without a trailing space for consistency
// between element types (div and iframe do not preserve the space)
let textValue = this.mentionSelect(this.searchList.activeItem);
insertValue(nativeElement, this.startPos, pos, textValue, this.iframe);
this.emitSelection(nativeElement);
if (this.htmlStyling) {
let quillElement = document.querySelector('.ql-editor');
let innerHtml = quillElement.innerHTML;
let strings = innerHtml.split(textValue);
if (strings.length === 2) {
innerHtml = `${strings[0]}<span id="mention${textValue.substring(1)}${strings.length - 1}" style="color: #0065FF; background: rgba(0,101,255,.2)">${textValue}</span> ${strings[1]}`;
} else {
let openSpan = false;
innerHtml = strings.reduce((total, current, currentIndex) => {
if (current.indexOf(`mention${textValue.substring(1)}`) > 0) {
return `${total}${openSpan ? '</span> ' : ''}${current}${textValue}`;
} else if (openSpan) {
return `${total}</span> ${currentIndex < strings.length - 1 ? current + textValue : current}`;
} else {
openSpan = true;
return `${total}${current}<span id="mention${textValue.substring(1)}${strings.length - 1}" style="color: #0065FF; background: rgba(0,101,255,.2)">${textValue}`;
}
}, '');
}
quillElement.innerHTML = innerHtml;
// tslint:disable-next-line:no-angle-bracket-type-assertion
let mentionElement: HTMLInputElement = document.getElementById(`mention${textValue.substring(1)}${strings.length - 1}`) as HTMLInputElement;
// tslint:disable-next-line:no-angle-bracket-type-assertion
setCaretPosition(mentionElement.nextSibling as HTMLInputElement, 1);
}
// fire input event so angular bindings are updated
if ('createEvent' in document) {
let evt = document.createEvent('HTMLEvents');
evt.initEvent('input', false, true);
nativeElement.dispatchEvent(evt);
}
this.startPos = -1;
return false;
} else if (event.keyCode === KEY_ESCAPE) {
this.stopEvent(event);
this.searchList.hidden = true;
this.stopSearch = true;
return false;
} else if (event.keyCode === KEY_DOWN) {
this.stopEvent(event);
this.searchList.activateNextItem();
return false;
} else if (event.keyCode === KEY_UP) {
this.stopEvent(event);
this.searchList.activatePreviousItem();
return false;
}
}
if (event.keyCode === KEY_LEFT || event.keyCode === KEY_RIGHT) {
this.stopEvent(event);
return false;
} else {
let mention = val.substring(this.startPos + 1, pos);
if (event.keyCode !== KEY_BACKSPACE) {
mention += charPressed;
}
this.searchString = mention;
this.searchTerm.emit(this.searchString);
this.updateSearchList();
}
}
}
}
now the issue here is that if the user to insert the char # need to use the combination of ALT + Q EDGE only detect ALT and then Q, compare to firefox and chrome that with the combination ALT + Q detect # for this reason the list is not display because the char never match.

First i replace the event keydown for keypress, then where i save the char in the variable charPress i create a condition to check if the browser is EDGE or IE, and get char code using event.charCode and convert it in to string using String.fromCharCode(event.charCode) at the end looks like this.
#HostListener('keypress', ['$event']) keyHandler(event: any, nativeElement: HTMLInputElement = this._element.nativeElement) {
let val: string = getValue(nativeElement);
let pos = getCaretPosition(nativeElement, this.iframe);
let charPressed = this.keyCodeSpecified ? event.keyCode : event.key;
if (this.configService.appConfig.platform.EDGE) {
charPressed = String.fromCharCode(event.charCode);
}
......

Format Input to 2 Decimals while Typing HTML/Javascript

How can I create an input field for currency? I'm looking for it to work as follows:
Initial: 0.00
Type "1": 0.01
Type "2": 0.12
Type "5": 1.25
I'm pretty new with web design, so I'm looking for a simpler solution. I saw a similar question & answer to this question with an Angular solution, but I'm unsure how to implement that into my HTML project. I have a simple folder with HTML files in it. Thanks!

A little tricky
Working Demo
document.getElementById("demo").onkeydown = function (e) {
//console.log(e.keyCode);
if (e.keyCode != 37 && e.keyCode != 39 && e.keyCode != 8 && e.keyCode != 46)
e.preventDefault();
if (e.keyCode == 8 || e.keyCode == 46) {
//If already key down (backspaceOrDel=1) then no affect
if (backspaceOrDel == 1)
e.preventDefault();
else
backspaceOrDel = 1;
return;
}
if (e.keyCode < 48 || (e.keyCode > 57 && e.keyCode <96) || e.keyCode > 105 )
return;
try {
var val = this.value;
var val1 = 0;
if (val == 0) {
val1 = e.key / 100;
}
else {
//very tricky. We needed val1=val*10+e.key but it does not
//work correctly with floats in javascript.
//Here you have to different than android in logic
var val1 = parseFloat(val) * 1000;
val1 += parseFloat(e.key);
val1 = val1 / 100;
}
val1 = val1.toFixed(2);
if (!isNaN(val1))
this.value = val1;
}
catch (ex) {
alert("Invalid Amount");
}
};

<style>
.amount_tendered {
text-align: right;
font-size: 24px;
width: 200px;
}
</style>
<form>
<input class="amount_tendered" id="text" type="number" min="0" value="0.00" onkeyup="formatNum(this);" onclick="this.select(); activated();">
</form>
<script type="text/javascript">
String.prototype.splice = function(idx, rem, str) {
return this.slice(0, idx) + str + this.slice(idx + Math.abs(rem));
};
function formatNum(obj){
var str = obj.value;
switch (true){
case str.length==1:
str = '0.0' + str;
break;
case str.length==3:
str = '0' + str;
}
var indices = [];
for(var i=0; i<str.length;i++) {
if (str[i] === "." && (str.length - i)!=3) indices.push(i);
}
for(var i=0; i<indices.length;i++) {
str = str.replace('.','');
}
indices = [];
for(var i=0; i<str.length;i++) {
if (str[i] === ".") indices.push(i);
}
if (indices.length==0){
str = str.splice(str.length-2, 0, ".");
}
if (str[0]=='0' && str[1]!='.'){
str = str.replace('0','');
}
obj.value = str;
}
</script>

Form Validation Jquery object

I am trying to format the phone number field based on the country .The logic works fine when the user fill in the details but does not work when the country is changed and filled in again.
Ex:
Filled in the form for Germany and then without reloading the page if try change county to US and fill in phone "+" is being added even though format for it is different.
$(document).ready(function($){
$('#country').on('change', function() {
if ( this.value == 'US' || this.value == 'CA')
{
$('#C_BusPhone')
.keydown(function (e) {
var key = e.charCode || e.keyCode || 0;
$phone = $(this);
if (key !== 8 && key !== 9) {
if ($phone.val().length === 4) {
$phone.val($phone.val() + ')');
}
if ($phone.val().length === 5) {
$phone.val($phone.val() + ' ');
}
if ($phone.val().length === 9) {
$phone.val($phone.val() + '-');
}
}
return (key == 8 ||
key == 9 ||
key == 46 ||
(key >= 48 && key <= 57) ||
(key >= 96 && key <= 105));
})
.bind('focus click', function () {
$phone = $(this);
if ($phone.val().length === 0) {
$phone.val('(');
}
else {
var val = $phone.val();
$phone.val('').val(val);
}
})
.blur(function () {
$phone = $(this);
if ($phone.val() === '(') {
$phone.val('');
}
});
}
else
{
$('#C_BusPhone')
.keydown(function (e) {
if ($(this).val().indexOf("+") === -1) {
$(this).val("+" + $this.val());
}
})
}
});
});

Not sure if this was the cause for your error, but this line needs to get corrected from
$(this).val("+" + $this.val());
to this
$(this).val("+" + $(this).val());
It was a fast catch, just use your browser javascript console for debugging.
See the updated fiddle here. You might want to add the starting parenthesis to your international prefix as well.

Synchronous input update with selected digit in HTML/JavaScript

I'm trying to implement a customised input that can use left or right arrow key to select the digit and use up/down arrow key to increment/decrement the digit. Here's the code in jsfiddle: http://jsfiddle.net/uk5t3z4d/48/. However, I have two problems:
I cannot add digit using the number pad, the input always stays at X.XX
When I use another function I wrote (parseLocalFloat which is commented out), the output stops displaying anything, and I cannot use the left and right key to select the digit etc.
How can I overcome these two issues? Please shed a light on me, thanks!
HTML
<div class="display" id="out"></div>
<div class="form-group">
<label for="comment">value:</label>
<input class="form-control" type="text" value="0.00" id="in"></input>
</div>
JavaScript
function createSelection(field, start, end) {
if( field.createTextRange ) {
var selRange = field.createTextRange();
selRange.collapse(true);
selRange.moveStart('character', start);
selRange.moveEnd('character', end);
selRange.select();
} else if( field.setSelectionRange ) {
field.setSelectionRange(start, end);
} else if( field.selectionStart ) {
field.selectionStart = start;
field.selectionEnd = end;
}
}
function getLocalDecimalSeparator() {
var n = 1.1;
return n.toLocaleString().substring(1,2);
}
function parseLocalFloat(num) {
return +(num.replace(getLocalDecimalSeparator(), '.'));
}
var inputBox = document.getElementById('in');
//var inputBox = parseLocalFloat(document.getElementByID('in').value);
inputBox.onkeyup = function(){
document.getElementById('out').innerHTML = inputBox.value;
}
$('#in').on("keydown", function(e){
var gotCode = false;
var curPos = this.selectionStart;
var endPos = this.selectionEnd;
if(curPos !== endPos) {
createSelection(this, curPos, curPos+1);
}
// get the position
if(e.keyCode == 37){
curPos--;
gotCode=true;
}
if(e.keyCode == 39){
curPos++;
gotCode=true;
}
var before = $(this).val().substring(0,curPos);
var after = $(this).val().substring(curPos+1);
var cur = Number($(this).val().substring(curPos, curPos+1));
// avoid adding extra stuff
if(curPos < $(this).val().length) {
if(e.keyCode == 38) {
cur++;
if(cur > 9) cur = 0;
$(this).val(before + '' + cur + '' + after);
gotCode=true;
}
if(e.keyCode == 40) {
cur--;
if(cur < 0) cur = 9;
$(this).val(before + '' + cur + '' + after);
gotCode=true;
}
}
if(!gotCode) {
e.preventDefault();
return false;
}
var field = this;
window.setTimeout(function(){
createSelection(field, curPos, curPos+1);
}, 10);
});

as for the "get number keys to work":
as stated you need to add the keys you want to support:
if(e.keyCode >= 48 && e.keyCode <= 57) {
var num = e.keyCode - 48; // 0=48; 9=59
$(this).val(before + '' + num + '' + after);
gotCode = true;
e.preventDefault(); // otherwise a new number is added as well
}
(this needs to come before the if (!gotCode) ... )
as for the customFloat: the the response from Moishe

For #1:
if(!gotCode) {
e.preventDefault();
return false;
}
ensures that if gotCode is false the default event (which in this case is the default keydown event) will not occur.
gotCode only seems to be true if keyCode is equal to 37, 38, 39, or 40 (the arrow keys). You are essentially preventing the other keys (like number keys) from having any effect on the textBox.
You probably would like to enable the number keys (when shift or caps aren't on) and number pad keys.
Additionally, you may want to check that the cur is a number (and not .) before attempting to increment or decrement its value.
You could do:
var isNumberKey = (
( e.keyCode >= 48 //is more than or equal to 0 key
&& e.keyCode <= 57 //is less than or equal to 9 key
&& !e.shiftKey) //shift key or cap key not on
|| ( e.keyCode >= 96 //more than or equal to 0 key in number pad
&& e.keyCode <= 105)); //less than or equal to 9 key in number pad
if(!gotCode && !isNumberKey) { //not arrow key or number key
console.log(e);
e.preventDefault();
return false;
}
For #2:
var inputBox = parseLocalFloat(document.getElementByID('in').value);
is setting inputBox to whatever parseLocalFloat returns which happens to be a number.
This is problematic because you then attempt to attach a keyUp event to that number instead of the inputBox:
inputBox.onkeyup = function(){
document.getElementById('out').innerHTML = inputBox.value;
}
You may want to instead call parseLocalFloat on the number and set the out textBox's value to that:
var inputBox = document.getElementById('in');
inputBox.onkeyup = function(){
document.getElementById('out').innerHTML = parseLocalFloat(inputBox.value);
}
function createSelection(field, start, end) {
if( field.createTextRange ) {
var selRange = field.createTextRange();
selRange.collapse(true);
selRange.moveStart('character', start);
selRange.moveEnd('character', end);
selRange.select();
} else if( field.setSelectionRange ) {
field.setSelectionRange(start, end);
} else if( field.selectionStart ) {
field.selectionStart = start;
field.selectionEnd = end;
}
}
function getLocalDecimalSeparator() {
var n = 1.1;
return n.toLocaleString().substring(1,2);
}
function parseLocalFloat(num) {
return +(num.replace(getLocalDecimalSeparator(), '.'));
}
var inputBox = document.getElementById('in');
// var inputBox = parseLocalFloat(document.getElementByID('in').value);
inputBox.onkeyup = function(){
document.getElementById('out').innerHTML = parseLocalFloat(inputBox.value);
}
$('#in').on("keydown", function(e){
var gotCode = false;
var curPos = this.selectionStart;
var endPos = this.selectionEnd;
if(curPos !== endPos) {
createSelection(this, curPos, curPos+1);
}
// get the position
if(e.keyCode == 37){
curPos--;
gotCode=true;
}
if(e.keyCode == 39){
curPos++;
gotCode=true;
}
var $thisVal = $(this).val();
var before = $thisVal.substring(0,curPos);
var after = $thisVal.substring(curPos+1);
var cur = Number($thisVal.substring(curPos, curPos+1));
// avoid adding extra stuff
if(curPos < $thisVal.length && !isNaN(cur)) {
if(e.keyCode == 38) {
cur++;
if(cur > 9) cur = 0;
$(this).val(before + '' + cur + '' + after);
gotCode=true;
}
if(e.keyCode == 40) {
cur--;
if(cur < 0) cur = 9;
$(this).val(before + '' + cur + '' + after);
gotCode=true;
}
}
var isNumberKey = ((e.keyCode >= 48 && e.keyCode <= 57 && [16, 20].indexOf(e.keyCode) == -1 && !e.shiftKey) || (e.keyCode >= 96 && e.keyCode <= 105));
if(!gotCode && !isNumberKey) {
console.log(e);
e.preventDefault();
return false;
}
var field = this;
window.setTimeout(function(){
createSelection(field, curPos, curPos+1);
}, 10);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="display" id="out"></div>
<div class="form-group">
<label for="comment">value:</label>
<input class="form-control" type="text" value="0.00" id="in"></input>
</div>

Phone mask with jQuery and Masked Input Plugin

I have a problem masking a phone input with jQuery and Masked Input Plugin.
There are 2 possible formats:
(XX)XXXX-XXXX
(XX)XXXXX-XXXX
Is there any way to mask it accepting both cases?
EDIT:
I tried:
$("#phone").mask("(99) 9999-9999");
$("#telf1").mask("(99) 9999*-9999");
$("#telf1").mask("(99) 9999?-9999");
But it doesn't works as I would like.
The closest one was (xx)xxxx-xxxxx.
I would like to get (xx)xxxx-xxxx when I type the 10th number, and (xx)xxxxx-xxxx when I type the 11th. Is it posible?

Try this - http://jsfiddle.net/dKRGE/3/
$("#phone").mask("(99) 9999?9-9999");
$("#phone").on("blur", function() {
var last = $(this).val().substr( $(this).val().indexOf("-") + 1 );
if( last.length == 3 ) {
var move = $(this).val().substr( $(this).val().indexOf("-") - 1, 1 );
var lastfour = move + last;
var first = $(this).val().substr( 0, 9 );
$(this).val( first + '-' + lastfour );
}
});

Here is a jQuery phone number mask. No plugin required.
Format can be adjusted to your needs.
Updated JSFiddle.
HTML
<form id="example-form" name="my-form">
<input id="phone-number" name="phone-number" type="text" placeholder="(XXX) XXX-XXXX">
</form>
JavaScript
$('#phone-number', '#example-form')
.keydown(function (e) {
var key = e.which || e.charCode || e.keyCode || 0;
$phone = $(this);
// Don't let them remove the starting '('
if ($phone.val().length === 1 && (key === 8 || key === 46)) {
$phone.val('(');
return false;
}
// Reset if they highlight and type over first char.
else if ($phone.val().charAt(0) !== '(') {
$phone.val('('+$phone.val());
}
// Auto-format- do not expose the mask as the user begins to type
if (key !== 8 && key !== 9) {
if ($phone.val().length === 4) {
$phone.val($phone.val() + ')');
}
if ($phone.val().length === 5) {
$phone.val($phone.val() + ' ');
}
if ($phone.val().length === 9) {
$phone.val($phone.val() + '-');
}
}
// Allow numeric (and tab, backspace, delete) keys only
return (key == 8 ||
key == 9 ||
key == 46 ||
(key >= 48 && key <= 57) ||
(key >= 96 && key <= 105));
})
.bind('focus click', function () {
$phone = $(this);
if ($phone.val().length === 0) {
$phone.val('(');
}
else {
var val = $phone.val();
$phone.val('').val(val); // Ensure cursor remains at the end
}
})
.blur(function () {
$phone = $(this);
if ($phone.val() === '(') {
$phone.val('');
}
});

Actually the correct answer is on http://jsfiddle.net/HDakN/
Zoltan answer will allow user entry "(99) 9999" and then leave the field incomplete
$("#phone").mask("(99) 9999-9999?9");
$("#phone").on("blur", function() {
var last = $(this).val().substr( $(this).val().indexOf("-") + 1 );
if( last.length == 5 ) {
var move = $(this).val().substr( $(this).val().indexOf("-") + 1, 1 );
var lastfour = last.substr(1,4);
var first = $(this).val().substr( 0, 9 );
$(this).val( first + move + '-' + lastfour );
}
});​

You need a jQuery plugin for the mask works as well.
-- HTML --
<input type="text" id="phone" placeholder="(99) 9999-9999">
<input type="text" id="telf1" placeholder="(99) 9999*-9999">
<input type="text" id="telf2" placeholder="(99) 9999?-9999">
-- JAVASCRIPT --
<script src="https://raw.githubusercontent.com/igorescobar/jQuery-Mask-Plugin/master/src/jquery.mask.js"></script>
<script>
$(document).ready(function($){
$("#phone").mask("(99) 9999-9999");
$("#telf1").mask("(99) 9999*-9999");
$("#telf2").mask("(99) 9999?-9999");
});
</script>

You can use the phone alias with Inputmask v3
$('#phone').inputmask({ alias: "phone", "clearIncomplete": true });
$(function() {
$('input[type="tel"]').inputmask({ alias: "phone", "clearIncomplete": true });
});
<label for="phone">Phone</label>
<input name="phone" type="tel">
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/RobinHerbots/Inputmask#3.3.7/dist/inputmask/inputmask.js"></script>
<script src="https://cdn.jsdelivr.net/gh/RobinHerbots/Inputmask#3.3.7/dist/inputmask/inputmask.extensions.js"></script>
<script src="https://cdn.jsdelivr.net/gh/RobinHerbots/Inputmask#3.3.7/dist/inputmask/inputmask.numeric.extensions.js"></script>
<script src="https://cdn.jsdelivr.net/gh/RobinHerbots/Inputmask#3.3.7/dist/inputmask/inputmask.date.extensions.js"></script>
<script src="https://cdn.jsdelivr.net/gh/RobinHerbots/Inputmask#3.3.7/dist/inputmask/inputmask.phone.extensions.js"></script>
<script src="https://cdn.jsdelivr.net/gh/RobinHerbots/Inputmask#3.3.7/dist/inputmask/jquery.inputmask.js"></script>
<script src="https://cdn.jsdelivr.net/gh/RobinHerbots/Inputmask#3.3.7/dist/inputmask/phone-codes/phone.js"></script>
https://github.com/RobinHerbots/Inputmask#aliases

Using jQuery Mask Plugin there is two possible ways to implement it:
1- Following Anatel's recomendations:
https://gist.github.com/3724610/5003f97804ea1e62a3182e21c3b0d3ae3b657dd9
2- Or without following Anatel's recomendations:
https://gist.github.com/igorescobar/5327820
All examples above was coded using jQuery Mask Plugin and it can be downloaded at:
http://igorescobar.github.io/jQuery-Mask-Plugin/

var $phone = $("#input_id");
var maskOptions = {onKeyPress: function(phone) {
var masks = ['(00) 0000-0000', '(00) 00000-0000'];
mask = phone.match(/^\([0-9]{2}\) 9/g)
? masks[1]
: masks[0];
$phone.mask(mask, this);
}};
$phone.mask('(00) 0000-0000', maskOptions);

With jquery.mask.js
http://jsfiddle.net/brynner/f9kd0aes/
HTML
<input type="text" class="phone" maxlength="15" value="85999998888">
<input type="text" class="phone" maxlength="15" value="8533334444">
JS
// Function
function phoneMask(e){
var s=e.val();
var s=s.replace(/[_\W]+/g,'');
var n=s.length;
if(n<11){var m='(00) 0000-00000';}else{var m='(00) 00000-00000';}
$(e).mask(m);
}
// Type
$('body').on('keyup','.phone',function(){
phoneMask($(this));
});
// On load
$('.phone').keyup();
Only jQuery
http://jsfiddle.net/brynner/6vbrqe6z/
HTML
<p class="phone">85999998888</p>
<p class="phone">8599998888</p>
jQuery
$('.phone').text(function(i, text) {
var n = (text.length)-6;
if(n==4){var p=n;}else{var p=5;}
var regex = new RegExp('(\\d{2})(\\d{'+p+'})(\\d{4})');
var text = text.replace(regex, "($1) $2-$3");
return text;
});

The best way to do this is using the change event like this:
$("#phone")
.mask("(99) 9999?9-9999")
.on("change", function() {
var last = $(this).val().substr( $(this).val().indexOf("-") + 1 );
if( last.length == 3 ) {
var move = $(this).val().substr( $(this).val().indexOf("-") - 1, 1 );
var lastfour = move + last;
var first = $(this).val().substr( 0, 9 ); // Change 9 to 8 if you prefer mask without space: (99)9999?9-9999
$(this).val( first + '-' + lastfour );
}
})
.change(); // Trigger the event change to adjust the mask when the value comes setted. Useful on edit forms.

The best way to do it on blur is:
function formatPhone(obj) {
if (obj.value != "")
{
var numbers = obj.value.replace(/\D/g, ''),
char = {0:'(',3:') ',6:' - '};
obj.value = '';
upto = numbers.length;
if(numbers.length < 10)
{
upto = numbers.length;
}
else
{
upto = 10;
}
for (var i = 0; i < upto; i++) {
obj.value += (char[i]||'') + numbers[i];
}
}
}

As alternative
function FormatPhone(tt,e){
//console.log(e.which);
var t = $(tt);
var v1 = t.val();
var k = e.which;
if(k!=8 && v1.length===18){
e.preventDefault();
}
var q = String.fromCharCode((96 <= k && k <= 105)? k-48 : k);
if (((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) && e.keyCode!=46 && e.keyCode!=37 && e.keyCode!=8 && e.keyCode!=39) {
e.preventDefault();
}
else{
setTimeout(function(){
var v = t.val();
var l = v.length;
//console.log(l);
if(k!=8){
if(l<4){
t.val('+7 ');
}
else if(l===4){
if(isNaN(q)){
t.val('+7 (');
}
else{
t.val('+7 ('+q);
}
}
else if(l===7){
t.val(v+')');
}
else if(l===9){
t.val(v1+' '+q);
}
else if(l===13||l===16){
t.val(v1+'-'+q);
}
else if(l>18){
v=v.substr(0,18);
t.val(v);
}
}
else{
if(l<4){
t.val('+7 ');
}
}
},100);
}
}

I was developed simple and easy masks on input field to US phone format jquery-input-mask-phone-number
Simple Add jquery-input-mask-phone-number plugin in to your HTML file and call usPhoneFormat method.
$(document).ready(function () {
$('#yourphone').usPhoneFormat({
format: '(xxx) xxx-xxxx',
});
});
Working JSFiddle Link https://jsfiddle.net/1kbat1nb/
NPM Reference URL https://www.npmjs.com/package/jquery-input-mask-phone-number
GitHub Reference URL https://github.com/rajaramtt/jquery-input-mask-phone-number

If you don't want to show your mask as placeholder you should use jQuery Mask Plugin.
The cleanest way:
var options = {
onKeyPress: function(phone, e, field, options) {
var masks = ['(00) 0000-00000', '(00) 00000-0000'];
var mask = (phone.length>14) ? masks[1] : masks[0];
$('.phone-input').mask(mask, options);
}
};
$('.phone-input').mask('(00) 0000-00000', options);

Yes use this
$("#phone").inputmask({"mask": "(99) 9999 - 9999"});
Link here

$('.phone').focus(function(e) {
// add mask
$('.phone')
.mask("(99) 99999999?9")
.focusin(function(event)
{
$(this).unmask();
$(this).mask("(99) 99999999?9");
})
.focusout(function(event)
{
var phone, element;
element = $(this);
phone = element.val().replace(/\D/g, '');
element.unmask();
if (phone.length > 10) {
element.mask("(99) 99999-999?9");
} else {
element.mask("(99) 9999-9999?9");
}
}
);
});