|
1 | | -console.log("Javascript Calculator Made by Harsh Trivedi\nhttps://harsh98trivedi.github.io") |
| 1 | +console.log( |
| 2 | + "Javascript Calculator Made by Harsh Trivedi\nhttps://harsh98trivedi.github.io" |
| 3 | +); |
2 | 4 |
|
3 | | -document.getElementById('answer').readOnly = true; //set this attribute in Html file |
4 | | -let screen = document.getElementById('answer'); |
5 | | -buttons = document.querySelectorAll('button'); |
6 | | -let screenValue = ''; |
| 5 | +document.getElementById("answer").readOnly = true; //set this attribute in Html file |
| 6 | +let screen = document.getElementById("answer"); |
| 7 | +buttons = document.querySelectorAll("button"); |
| 8 | +let screenValue = ""; |
7 | 9 | for (item of buttons) { |
8 | | - item.addEventListener('click', (e) => { |
9 | | - // console.log(buttonText, "has been pressed"); |
| 10 | + item.addEventListener("click", (e) => { |
10 | 11 | buttonText = e.target.innerText; |
11 | | - if (buttonText == 'X') { |
12 | | - buttonText = '*'; |
| 12 | + if (buttonText == "X") { |
| 13 | + buttonText = "*"; |
13 | 14 | screenValue += buttonText; |
14 | 15 | screen.value = screenValue; |
15 | | - } |
16 | | - else if (buttonText == 'C') { |
| 16 | + } else if (buttonText == "C") { |
17 | 17 | screenValue = ""; |
18 | 18 | screen.value = screenValue; |
19 | | - } |
20 | | - else if (buttonText == '=') { |
| 19 | + } else if (buttonText == "=") { |
21 | 20 | screen.value = eval(screenValue); |
22 | | - } |
23 | | - else { |
| 21 | + } else { |
24 | 22 | screenValue += buttonText; |
25 | 23 | screen.value = screenValue; |
26 | 24 | } |
27 | | - |
28 | | - }) |
| 25 | + }); |
29 | 26 | } |
30 | 27 |
|
31 | | -document.addEventListener("keydown", function(event) { |
| 28 | +document.addEventListener("keydown", function (event) { |
32 | 29 | console.log(event.which); |
33 | | - if(event.shiftKey==57){ |
34 | | - event.key = '('; |
35 | | - } |
36 | | - else if(event.shiftKey==48){ |
37 | | - event.key = ')'; |
| 30 | + if (event.shiftKey == 57) { |
| 31 | + event.key = "("; |
| 32 | + } else if (event.shiftKey == 48) { |
| 33 | + event.key = ")"; |
| 34 | + } else if (event.shiftKey == 53) { |
| 35 | + event.key = "%"; |
38 | 36 | } |
39 | | - else if(event.shiftKey==53){ |
40 | | - event.key = '%'; |
41 | | - } |
42 | | - if(event.keyCode==88){ |
43 | | - screenValue += '*'; |
| 37 | + if (event.keyCode == 88) { |
| 38 | + screenValue += "*"; |
44 | 39 | screen.value = screenValue; |
45 | 40 | } |
46 | | - if(event.key<=9 || event.key=='+' || event.key=='-' || event.key=='*' || event.key=='.' || event.key=='/' || event.key=='%' || event.key=='(' || event.key==')'){ |
| 41 | + if ( |
| 42 | + event.key <= 9 || |
| 43 | + event.key == "+" || |
| 44 | + event.key == "-" || |
| 45 | + event.key == "*" || |
| 46 | + event.key == "." || |
| 47 | + event.key == "/" || |
| 48 | + event.key == "%" || |
| 49 | + event.key == "(" || |
| 50 | + event.key == ")" |
| 51 | + ) { |
47 | 52 | screenValue += event.key; |
48 | 53 | screen.value = screenValue; |
49 | 54 | } |
50 | | - if(event.keyCode == 13 || event.keyCode == 187) |
51 | | - { |
| 55 | + if (event.keyCode == 13 || event.keyCode == 187) { |
52 | 56 | screen.value = eval(screenValue); |
53 | | - } |
54 | | - else if(event.keyCode == 46){ |
| 57 | + } else if (event.keyCode == 46) { |
55 | 58 | screenValue = ""; |
56 | 59 | screen.value = screenValue; |
57 | 60 | console.clear(); |
58 | | - } |
59 | | - else if(event.keyCode == 8){ |
| 61 | + } else if (event.keyCode == 8) { |
60 | 62 | screenValue = screenValue.slice(0, -1); |
61 | 63 | screen.value = screenValue; |
62 | | - } |
63 | | - else if(event.keyCode == 67){ |
| 64 | + } else if (event.keyCode == 67) { |
64 | 65 | screenValue = ""; |
65 | 66 | screen.value = screenValue; |
66 | 67 | console.clear(); |
67 | | - } |
68 | | - else if(event.keyCode == 82){ |
| 68 | + } else if (event.keyCode == 82) { |
69 | 69 | location.reload(); |
70 | 70 | } |
71 | | - }) |
| 71 | +}); |
72 | 72 |
|
73 | | - window.onerror = function(){ |
74 | | - alert("PLEASE INPUT VALID EXPRESSION"); |
75 | | - screenValue = ""; |
76 | | - screen.value = screenValue; |
77 | | - console.clear(); |
78 | | - } |
| 73 | +window.onerror = function () { |
| 74 | + alert("PLEASE INPUT VALID EXPRESSION"); |
| 75 | + screenValue = ""; |
| 76 | + screen.value = screenValue; |
| 77 | + console.clear(); |
| 78 | +}; |
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