54 lines
1.2 KiB
JavaScript
54 lines
1.2 KiB
JavaScript
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let operators = [
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'+',
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'-',
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'/',
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'*',
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'.'
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];
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let operation = "";
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function calculate() {
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let $display = $( ".display" );
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try {
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let result = eval( operation );
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$display.text( result );
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operation = result.toString();
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} catch (e) {
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}
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}
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$( document ).on( "keypress", "#main-input", function ( e ) {
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let char = e.charCode;
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let $this = $( this );
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if ( char === 13 ) {
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calculate( $this.val() );
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} else if ( operators.indexOf( String.fromCharCode( char ) ) >= 0 ) {
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// Operators
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if ( operators.indexOf( $this.val().split("").pop() ) >= 0 ) {
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e.preventDefault();
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}
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} else if ( ( char >= 48 && char <= 57 ) || char === 40 || char === 41 ) {
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// Number
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} else {
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e.preventDefault();
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}
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console.log( char );
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} );
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$( document ).on( "click", ".button-input", function () {
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let $elem = $( this );
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let input = $elem.find( "span" ).html();
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let $display = $( ".display" );
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if ( input === "=" ) {
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calculate();
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} else {
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operation += $elem.find( "span" ).html();
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$display.text( operation );
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$display.scrollLeft( 1000 );
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}
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} );
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