| | 1 | = JSC = |
| | 2 | {{{jsc}}} is a command-line utility that allows you to run JavaScript programs outside of the context of a web browser. It is primarily used as part of the test harness for validating the JavaScript portions of WebKit, but can also be used as a scripting tool. |
| | 3 | |
| | 4 | {{{jsc}}} can be run in an interactive mode to test out JavaScript expressions, or it can be passed one or more files to run similar to invoking a Perl or Python script. |
| | 5 | |
| | 6 | == Usage == |
| | 7 | === Command Line Flags === |
| | 8 | {{{ |
| | 9 | Usage: jsc [options] [files] [-- arguments] |
| | 10 | -d Dumps bytecode (debug builds only) |
| | 11 | -e Evaluate argument as script code |
| | 12 | -f Specifies a source file (deprecated) |
| | 13 | -h|--help Prints this help message |
| | 14 | -i Enables interactive mode (default if no files are specified) |
| | 15 | -s Installs signal handlers that exit on a crash (Unix platforms only) |
| | 16 | }}} |
| | 17 | |
| | 18 | === Built-In Functions === |
| | 19 | * {{{quit()}}} Quit the interpreter |
| | 20 | |
| | 21 | |
| | 22 | == Examples == |
| | 23 | You can use {{{jsc}}} as a calculator: |
| | 24 | {{{ |
| | 25 | $ ./jsc |
| | 26 | > "hello" |
| | 27 | hello |
| | 28 | > 1 + 3 |
| | 29 | 4 |
| | 30 | > 2 * Math.sin(32) |
| | 31 | 1.1028533624833812 |
| | 32 | > 2 * Math.floor(1.2) |
| | 33 | 2 |
| | 34 | > 2 * Math.ceil(1.2) |
| | 35 | 4 |
| | 36 | > 15.3 / 18 * 27.1 * (Math.ceil(1.3) * Math.exp(2.3) * Math.log (1.223) * Math.sin(32.22)) |
| | 37 | 66.6192983328985 |
| | 38 | > |
| | 39 | }}} |
| | 40 | |
| | 41 | You can also test more complicated expressions: |
| | 42 | {{{ |
| | 43 | > var add3 = function(arg) { return arg + 3; } |
| | 44 | undefined |
| | 45 | > add3(3) |
| | 46 | 6 |
| | 47 | > |
| | 48 | }}} |
| | 49 | |
