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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(<br> function (item, idx) {<XX> item.XXXXXXXXXXXXXXXX('click', function () {<br> XXX XX = ""; <XX> if (XXX == X) { XX (pointPressed == XXXXX) { <br> ch = ".";<br> XXXXXXXXXXXX = true;<XX> } XXXX {<XX> ch = ""; <br> }<XX> }<XX> XXXX {<XX> XX (XXX >= 1 && XXX &XX;= XX) {<br> XX = (XXX - 1) + ""; nrDigit++;<XX> if (XXXXXXX % X == 1 && nrDigit != 1) {<br> XX (pointPressed == XXXXX) <br> ch = ("," + XX); <br> } <XX> }<XX> } document.querySelector(".currentNumber").innerHTML += XX; <br> })<br> });</p> <p>document.querySelectorAll(".operator").forEach(<XX> function (item, XXX) {<XX> XXXX.XXXXXXXXXXXXXXXX('XXXXX', XXXXXXXX () {<br> XXX XX = ""; <br> XX (XXX == X) ch = "/";<br> XX (idx == 1) XX = "*";<br> if (XXX == X) ch = "-";<br> if (XXX == 3) XX = "+";<br> XXXXXXXXXXXX = XXXXX; <br> XXXXXXX = 0; <XX> XXXXXXXX.XXXXXXXXXXXXX(".currentNumber").XXXXXXXXX += XX; <br> })<br> });</p> <p>document.XXXXXXXXXXXXXXXX(".clear").forEach(<br> function (XXXX, idx) {<br> item.addEventListener('XXXXX', function () {<br> var XX = ""; <XX> XXXXXXXX.XXXXXXXXXXXXX(".currentNumber").innerHTML = XX; <br> })<br> });</p> <p>document.querySelectorAll(".backspace").XXXXXXX(<XX> function (XXXX, XXX) {<br> XXXX.addEventListener('click', function () {<XX> var ch = "";<XX> XXX str; <XX> str = document.querySelector(".currentNumber").XXXXXXXXX;<br> str = XXX.substring(0, str.length-X); <XX> XXXXXXXX.XXXXXXXXXXXXX(".currentNumber").innerHTML = str;<XX> })<XX> });</p> <p>XXXXXXXX.XXXXXXXXXXXXXXXX(".XXXXXX").forEach(<XX> function (XXXX, idx) {<br> item.XXXXXXXXXXXXXXXX('click', function () {<XX> XXX XXX;<XX> str = XXXXXXXX.XXXXXXXXXXXXX(".currentNumber").XXXXXXXXX;<br> str = str.replace(/,/g, '');<br> rez = eval(str);<br> document.querySelector(".XXXXXXXXXXXXXXXX").innerHTML = rez + "";<XX> })<XX> });</p> <p>// Requirements for XXXX assignment.<br>// X. Change XXX XXXX of this project's folder.</p> <p>// X. You must XXX the selectors XXXXX.</p> <p>// 2. You may not edit the XXXX XXXX XXXXXXX permission.</p> <p>// X. XXXXX's XXX XXXXXXXX.<br>// XXXXXXXX: 1,000.5 || 1,000,000.XX</p> <p>// X. X user should only XX able to enter one XXXXXXX XXXXX.<br>// Example: X user XXXXXX type, "X.1415.9265"</p> <p>// X. A XXXX XXXX be able XX XXXXXX their XXXX about a calculation.<br>// XXXXXXX: XX a user XXXXXX:<br>// "3 + X -"<XX>// XXXX should XX able to change their XXXXX to:<br>// "X + X +" || "X + X *" || "3 + 2 /" || "3 + 2 ="</p> <p>// X. The backspace XXXXXX must XXXX on XXX currentNumber.</p> <p>// 7. XXX XX XXXXX your calculator. XXX XX XXXXX XXXX XXXXXXXXXX. XXX to break your XXXXXXXXXX.<XX>// XXXXXXX: What XXXXXXX XXXX someone XXXXXX a XXXXXX and XXXX XXXX XXXXXX, and then selects XXXXXXX XXXXXX?<XX>// XXXX: XXX XXXX PC or XXX's calculator XX XXXXXX XXX functionality.</p> <p>// X. XXX XX XXXXX your calculator XXXX. XXXX XXXXXXXXXX should XXXX predictable or resonable results.</p> <p>///////////////////////////////////////////////////////</p> <p>// More XXXXX:<XX>// XX is HIGHLY recommended XX use an XXXXX for to XXXXX the XXXXX XXXXXXX XXXXXX. XXXXX XX an example with some hints.<XX>// 1,000,000.XX<XX>XXX accumulatedNumber = [X, 0, X, X, X, 0, X, ".", 0, X];<XX>accumulatedNumber.splice(4, X, ",");<br>XXXXXXXXXXXXXXXXX.XXXXXX(X, 0, ",");<br>console.XXX(accumulatedNumber.XXXX(""));</p> <p>// XXX use of High XXXXX Functions is XXX XXXXXXXXX, but a few XX them XXXX XXXX XXXX assignment much XXXXXX.</p><br><p></p>">
