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Javascript 2022-01-22 17:46:08
javascript add string to middle of string
function addStr(str, index, stringToAdd){ return str.substring(0, index) + stringToAdd + str.substring(index, str.length); } let str = "This is a string"; let stringToAdd = "modyfied "; console.log(addStr(str, 10, stringToAdd)); /... Add solution -
Javascript 2022-01-22 16:50:10
show selected text in textarea && activeElement
function onMouseUp(e) { const activeTextarea = document.activeElement; const selection = activeTextarea.value.substring( activeTextarea.selectionStart, activeTextarea.selectionEnd ); const outputElement = document.getElementById('output-eleme... Add solution -
Other 2021-11-20 15:54:10
ascii of a character in dart
// Grab a substring. assert('Never odd or even'.substring(6, 9) == 'odd'); // Split a string using a string pattern. var parts = 'structured web apps'.split(' '); assert(parts.length == 3); assert(parts[0] == 'structured'); // Get a UTF-16 code unit (as... Add solution