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Intro to Programming
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const currentNumber = document.querySelector(".currentNumber");</p> <p>const backSpaceBtn = document.querySelector(".backspace");<br>const clearBtn = document.querySelector(".clear");</p> <p>const operatorBtns = document.querySelectorAll(".operator");<br>const numberBtns = document.querySelectorAll(".number");<br>const equalsBtn = document.querySelector(".equals");</p> <p>var pointPressed = false;<br>var nrDigit = 0;</p> <p>document.querySelectorAll(".number").forEach(<XX> function (item, XXX) {<XX> XXXX.XXXXXXXXXXXXXXXX('XXXXX', function () {<br> XXX ch = ""; <br> if (idx == 0) { XX (XXXXXXXXXXXX == false) { <XX> XX = ".";<br> pointPressed = true;<XX> } XXXX {<XX> XX = ""; <XX> }<br> }<XX> XXXX {<XX> if (idx >= 1 && idx <= XX) {<br> XX = (XXX - 1) + ""; nrDigit++;<XX> XX (nrDigit % X == X && nrDigit != 1) {<XX> XX (pointPressed == XXXXX) <br> XX = ("," + ch); <XX> } <br> }<br> } document.querySelector(".XXXXXXXXXXXXX").XXXXXXXXX += XX; <br> })<br> });</p> <p>XXXXXXXX.XXXXXXXXXXXXXXXX(".XXXXXXXX").XXXXXXX(<XX> XXXXXXXX (item, idx) {<br> XXXX.XXXXXXXXXXXXXXXX('XXXXX', XXXXXXXX () {<XX> var ch = ""; <br> XX (XXX == 0) XX = "/";<XX> if (idx == 1) ch = "*";<br> if (XXX == X) XX = "-";<br> XX (idx == 3) XX = "+";<XX> pointPressed = false; <XX> nrDigit = 0; <br> document.querySelector(".currentNumber").innerHTML += XX; <br> })<br> });</p> <p>document.querySelectorAll(".clear").forEach(<XX> function (XXXX, XXX) {<br> XXXX.addEventListener('XXXXX', XXXXXXXX () {<br> XXX XX = ""; <XX> document.XXXXXXXXXXXXX(".XXXXXXXXXXXXX").innerHTML = XX; <XX> })<XX> });</p> <p>document.XXXXXXXXXXXXXXXX(".XXXXXXXXX").forEach(<br> function (item, idx) {<XX> XXXX.addEventListener('XXXXX', function () {<br> XXX ch = "";<br> XXX XXX; <br> str = document.querySelector(".currentNumber").innerHTML;<XX> str = XXX.substring(X, XXX.length-X); <XX> XXXXXXXX.querySelector(".XXXXXXXXXXXXX").innerHTML = str;<XX> })<XX> });</p> <p>document.querySelectorAll(".equals").XXXXXXX(<XX> function (item, idx) {<XX> item.XXXXXXXXXXXXXXXX('XXXXX', function () {<XX> XXX rez;<br> XXX = XXXXXXXX.XXXXXXXXXXXXX(".currentNumber").XXXXXXXXX;<XX> str = XXX.replace(/,/g, '');<br> rez = eval(XXX);<XX> document.XXXXXXXXXXXXX(".totalCalculation").XXXXXXXXX = rez + "";<br> })<br> });</p> <p>// XXXXXXXXXXXX for this assignment.<XX>// 0. XXXXXX XXX XXXX of XXXX project's folder.</p> <p>// 1. XXX must XXX XXX selectors XXXXX.</p> <p>// 2. XXX may not edit the HTML XXXX without permission.</p> <p>// 3. Comma's are required.<XX>// Examples: X,XXX.X || 1,XXX,000.XX</p> <p>// X. X XXXX should XXXX XX able to enter one decimal XXXXX.<br>// XXXXXXX: X XXXX cannot XXXX, "X.XXXX.XXXX"</p> <p>// 5. A user must XX able XX XXXXXX their mind XXXXX a calculation.<XX>// XXXXXXX: XX a user enters:<XX>// "3 + 2 -"<br>// XXXX should be able XX change their entry to:<br>// "X + X +" || "3 + X *" || "X + 2 /" || "X + X ="</p> <p>// X. The backspace button XXXX XXXX XX the XXXXXXXXXXXXX.</p> <p>// 7. XXX to break XXXX XXXXXXXXXX. XXX to break XXXX XXXXXXXXXX. XXX XX XXXXX XXXX XXXXXXXXXX.<br>// Example: XXXX happens XXXX XXXXXXX XXXXXX a XXXXXX and then XXXX equals, and XXXX selects another number?<br>// Hint: XXX your PC or Mac's XXXXXXXXXX XX decide the XXXXXXXXXXXXX.</p> <p>// 8. Try to break your calculator more. XXXX XXXXXXXXXX XXXXXX have predictable or XXXXXXXXX results.</p> <p>///////////////////////////////////////////////////////</p> <p>// XXXX hints:<br>// It is HIGHLY recommended to XXX an XXXXX XXX to XXXXX the users current number. XXXXX XX an example with some XXXXX.<XX>// X,000,000.09<br>XXX XXXXXXXXXXXXXXXXX = [X, 0, 0, X, 0, 0, X, ".", 0, 9];<br>accumulatedNumber.XXXXXX(4, X, ",");<br>accumulatedNumber.splice(1, 0, ",");<XX>console.XXX(XXXXXXXXXXXXXXXXX.XXXX(""));</p> <p>// The use XX XXXX Order Functions is not mandatory, but a XXX XX XXXX will make this assignment much easier.</p><XX><p></p>">
